The Plant a Trillion Trees Podcast: Recent Episodes
Eva Monheim
The purpose of our podcast is to encourage tree planting and proper tree care for our urban forest which includes neighborhoods, parks, and other open spaces. We will also cover the importance of already established trees and their benefits. The show is hosted by Eva Monheim and Hal Rosner certified arborists through the International Society of Arboriculture. Support this podcast: https://anchor.fm/plantatrilliontrees/support
Dr. Glynn Percival is the Senior Arboricultural Researcher at the Bartlett Tree Research and Diagnostic Laboratory. Dr. Percival primarily focuses on how environmentalstress (drought, heat, and waterlogging) influences tree growth and susceptibility to pest and disease attacks. He is the author of more than 100 scientific papers, magazine articles, and book chapters, and is an honorary lecturer at the University Reading and the Royal Botanic Garden, Kew in the UK.
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Cyrus Copeland, a writer and nonprofit pioneer, planted his first tree as a tribute to his father—a red oak on the grounds of Valley Forge. Year after year he returned to the tree. But it wasn’t until Cyrus traveled to the West Bank and witnessed the deep relationship between Palestinians and their olive trees that an idea sparked: Could planting trees bring prosperity and balance to a high-conflictregion? Collaborating with the Palestinian Farmers Union, he launched Treedom for Palestine, harnessing the power of the olive tree as a catalyst for change.
Copeland’s dedication to civic engagement stems from his parents, educators from Iran and America, whoinstilled in him the value of fostering understanding among diverse communities.
Cyrus began a decade-long career on Madison Avenue developing strategies for clients like Kodak, Chrysler, and Chase, but found his true calling as a writer and socialchange advocate. His most recent book, OFF THE RADAR (Penguin/Blue Rider), won him the Chautauqua Prize, and his writings have been featured in publications such as The New York Times, The Los Angeles Times, Slate, NPR, and BBC.
Beyond his literary achievements, Cyrus is also a sought-after speaker and has delivered talks at conferences and cultural events worldwide.
Cyrus is an alum of Haverford College, Villanova, and Cornell University.
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Dr. Christine Carmichael is the award-winning founder and principal of Fair Forests Consulting, LLC, which she began in July 2019. She is also the best-selling author of Racist Roots: How Racism Has Affected Trees and People in Our Cities—and What We Can Do About It.
She holds a Ph.D. in Forestry with a specialization in Gender, Justice, and Environmental Change and holds a Graduate Certificate in Community Engagement from Michigan State University. Dr. Carmichael has published research explaining why 25% of Detroit residents eligible to receive a free street tree between 2011-2014 chose to decline this offer. Since its inception, Fair Forests Consulting, LLC has partnered with several U.S. cities and urban forestry organizations to develop strategies to achieve environmental justice goals through urban treeplanting, stewardship, and community engagement.
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Marielle Drennan is the owner of Champion Tree, a full-service plant healthcare company based out of King of Prussia, and servicing the Main Line and surrounding areas in Pennsylvania. Marielle is an ISA Certified Arborist® and a Pennsylvania Department of Agriculture Certified Pesticide Technician. Prior to formingChampion Tree, Marielle worked on her husband's pruning crew for several years.
She is a passionate collector of David Austin and antique roses, as well as a Pennsylvania Big Tree enthusiast. Marielle is a graduate of Washington and Lee University,in Lexington, Virginia where she majored in Mass Communications and double-minored in Studio Art and Film and Visual Culture Studies.
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Cliff Drouet is a Forester with the Office of Surface Mining Reclamation and Enforcement (OSMRE) which is a federal agency under the Department of the Interior. Cliff is working with the Appalachian Regional Reforestation Initiative (ARRI). The program restores old surface minesites throughout Appalachia by planting native seedlings and establishing wildlife habitats. This reforestation program was started in 2004 by OSMRE and it has evolved into a highly successful program with good seedling survivability and growth. Having native trees growing on old mine sites greatly improves air, water, and soil quality while providing wildlife habitat and recreation benefits on the site. The ARRI program partners with private landowners, federal, and state agencies, non-profits, academia, and corporations to restore old mine sites back to native forests across Appalachia.
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John Perlin is a Professor and Visiting Scholar in theDepartment of Physics at University of California, Santa Barbara. He is the author of A Forest Journey: The Role of Trees in the Fate of Civilization.
Perlin says, “It is my hope that this edition of A Forest Journey will make clear the imperative humanity faces because losing our forests would not merely be theend of nature, it could mean the end of us.”
Originally published in 1989, the book’s comprehensivecoverage of the major role forests have played in human life …….earned its recognition as a Harvard “Classic in Science and World History” and as one of Harvard’s “One Hundred Great Books.”
In this latest edition, Perlin cites data on how humanityhas cut down half the trees on the planet in the last 12,000 years and that deforestation continues at an alarming pace with 15 billion trees removed per year. That’s 500,000 square miles of forested land lost since the first edition of A Forest Journey was released.
Perlin is also the author of three other books: A GoldenThread: 2500 Years of Solar Architecture and Technology; From Space to Earth: The Story of Solar Electricity; and Let It Shine: The 6000-Year Story of Solar Energy.
Perlin lives in Santa Barbara, California.
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Neelam Patil, M.Ed., MFA, is a Climate Literacy and Science Teacher in the Berkeley public school system. She was awarded TIME Innovative Teacher of the Year2022 by TIME Magazine based on her work teaching children they can do something about climate change. Ms. Patil spearheaded the planting of the first Miyawakischoolyard forests in North America in Berkeley, California. While teaching her students about deforestation, they wanted to do something immediate and impactful. They demanded, ‘Let’s plant trees!’, and the rest is history.
Ms. Patil has been an educator since 2000. Her work specializes in empowering children to face the most pressing challenges of our time through climateresilience, mindfulness, plant based culinary education, and youth urban forestry. She is a certified SKY Breath instructor and recently founded a non-profit, Green Pocket Forests, whose mission is to green urban spaces using the Miyawaki method.
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Robert Lundgren has a Bachelor of Plant Science and Fine Arts minor from the University of Delaware, and a Master of Landscape Architecture from the University of Pennsylvania. He worked at landscape architecture firms, Olin and Andropogon and is now at Penn working as the University Landscape Architect within the Facilities& Real Estate Services Division, shepherding a variety of landscape projects on the 300-acre campus arboretum. He is an artist, an award-winning designer, and an avid naturalist. His responsibilities at Penn include research,campus planning, tree care and management, garden design, ecological and environmental initiatives, and maintenance protocols.
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Dave Muffly has been planting trees (especially oaks) in the Bay Area and other California locations for more than 30 years. Dave began his tree career when he received his undergraduate degree in mechanical engineering, at Stanford University. Moving from engineering to ecology, Dave managed native oak plantings at Stanford with the non-profit Magic, in a project that has yielded more than4,000 established oaks in 40 years. Dave then branched into fruit trees, and urban tree plantings, with a special focus on street trees.
Dave subsequently became a Board Certified Master Arborist and designed/oversaw the 101 Freeway Soundwall planting as part of the East Palo Alto Tree Initiative led by the non-profit Canopy. This radical and experimental 1000-tree drought adaptation planting succeeded far beyond expectations and laid the foundation for the changes reverberating through the California tree nursery industry today. The East Palo Alto Tree Initiative became the proof of concept for the even more radically diverse plantings at Apple Park in Cupertino, where Dave spent seven years as Apple's Senior Arborist. Today Dave works as a senior arborist andhorticultural futurist.
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Daniel Hinkley is a plantsman, author, lecturer, nurseryman, and horticultural consultant. He earned a B.S. in Horticulture and Horticulture Education from Michigan State University and an M.S. in Urban Horticulture at the University of Washington. His first garden, Heronswood, near Kingston, Washington is now owned and operated by the Port Gamble SKlallam Tribe and is open to the public throughout the year.
Dan's current garden, Windcliff, is just a few miles from Heronswood. It sits on a high bluff overlooking the Salish Sea. For forty years, Hinkley has traveled the globe to similar climates to observe and preserve plants that deserve recognition as possible new additions to landscapes worldwide. He has written four books and has been recognized by his peers in receiving numerous awards for his work, including the Liberty Hyde Baileyaward from the American Horticulture Society, the Scott Gold Medal from the Scott Arboretum, and the Veitch Memorial Medal from the Royal HorticulturalSociety.
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Mr. Al Key has been involved in the green industry for 30years as an owner of DeepRoot Green Infrastructure, LLC. Together with his partners, he co-invented the SilvaCell® and has received several patents for his inventions which address trees and stormwater management in the urbansetting. He has written for a wide range of publications, including the Journal of Arboriculture and Civil Engineering News. As Vice President, he established a representative network nationwide, set up major distributorships, and has been instrumental on projects such as the Metropolitan Museum of Art, USTA Billie Jean King Tennis Center, and the MIT SOMA Center at Kendall Square, Cambridge MA. Mr. Key is a former BoardMember of TreesNY, a Bronze Level Sponsor of the American Chestnut Foundation, a Forestry Committee member of the Wantastiquet Trout Club, and an AffiliateMember of the American Society of Civil Engineers (ASCE).
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Doug Oster is Pittsburgh’s GardenGuru and is host of the popular radio show The Organic Gardener on KDKA radioevery Sunday morning. He writes a gardening column for The Green Voice, the newsletter for Pittsburgh Earth Day.
Oster appears on KDKA-TV’s Pittsburgh Today Live as a contributor. He’s also the host of the Talking Treespodcast for the Davey Tree Expert Company along with starring and producing In Doug’s Garden, a weekly television show for CBS/KDKA Streaming.
Oster is proud to work as a consultant for Farm to Table of Western Pennsylvania/Buy Fresh Buy Local. In thatcapacity he teaches organic gardening classes, helps in the creation and maintenance of local gardens, and works with the team to help underserved communities.
In addition, Doug hosted, produced, and wrote the one-hour special “The Gardens of Pennsylvania” for PBS which won the Emmy for Outstanding Documentary.
His fifth book, “The Steel City Garden; Creating a One of a Kind Garden in Black and Gold” demonstrates how to create a garden using Pittsburgh’s favorite colors.
The garden personality has a strong following on Facebook, Twitter and Instagram.
Oster’s most satisfying accomplishment was founding Cultivating Success, a garden program for foster and adoptive children.
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John Grimshaw has been interested in plants his entire life, as both gardener and botanist. He holds a first class degree in botany and a doctorate in the ecology of the forests of Mt Kilimanjaro from Oxford University. HisTanzanian connections remain important, and he’s proud to be an honorary elder of the Maasai community of Lerang’wa, Tanzania. African plants remain an important botanical interest, but he is fascinated by all plants and has grown a huge diversity in his gardens. He has travelled widely to see plants growing in habitat. His first book was The Gardener’s Atlas (1998), recounting the journeys plants have made from their source to our gardens.
Working in The Netherlands for the seed company K. Sahin, Zaden. B.V., John was responsible for developing perennials and other plants for the seed trade. This gave him invaluable experience of commercial horticulture and management. Following that he joined Colesbourne Park in Gloucestershire as Gardens Manager, where he was responsible for maintaining and developing the historicElwes family garden, especially the snowdrop collection. He co-authored the monograph Snowdrops (2002) with M Bishop & A Davis, published by Griffin Press. Between 2004-2009 he was lead author of a major book on treesintroduced in the past 35 years, entitled New Trees, Recent Introductions to Cultivation, with co-author Ross Bayton. It was sponsored by the International Dendrology Society and was published by RBG Kew, in May 2009.
In August 2012 he became Director of The Yorkshire Arboretum, North Yorkshire, with responsibility for the 120-acre arboretum and 20-acre Ray Wood, on the CastleHoward estate. This involves a wide range of management and administrative duties, fundraising and networking as well as active curation of the extensive collection. In 2021 the arboretum opened the country’s first dedicated TreeHealth Centre, to raise awareness of the problems facing trees from diseases, pests and climate change. He was appointed MBE for ‘services to tree health and plant conservation’ in the 2024 New Year Honors List.
John is a member of the Royal Horticultural Society’s Nomenclature and Taxonomy Advisory Group, the RHS Woody Plant and Gardens Committees, and in 2012 led the RHS review of the Award of Garden Merit.
He speaks and writes widely on horticultural and tree-related subjects. Other interests include the arts, cookery and poultry-keeping.
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Richard McCoy is a 30-plus-year green industry professional, American Green Zone Alliance (AGZA) Northeast RegionalRepresentative and owner of Richard A. McCoy Horticultural Services Inc. established in 1995 and incorporated in 1998 as a conventional landscape company.
McCoy’s company began a transition to become one of New Jersey's first completely organic, ecological, and low-impact land care companies in 2005. Currently, McCoy Horticultural offers organic lawn and land care solutions, native plants, and green infrastructure design and installations. McCoy’s off-the-grid battery electric landscape maintenance is powered by a prototype self-designed solar trailer, and he uses autonomous robotic lawn mowing.
Richard is a NOFA Accredited Land Care Professional, holdsa Rutgers Organic Land Care Certificate and is an AGZA Certified Service Pro. McCoy is also an active New Jersey Nursery and Landscape Association member.
In addition, Richard is an advisor to many professional groups as well as being an organic, ecological, and low-impact land care educator to contractors, municipal and institutional workers on how to transition to alternative land care methods.
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Mark Richardson is the Director of Horticulture for the New England Botanic Garden at Tower Hill in Boylston, Massachusetts. He leads a team of horticulture staff and oversees a living plant collection that spans sixteen distinct garden spaces, two conservatories, and over 100 acres of surrounding woodlands and wetlands.He has a passion for ecological horticulture and native plants, and he lectures on various topics including “How to Kill Your Lawn.” He is the co-author of the book Native Plants for New England Gardens (Globe Pequot, 2018).
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Tim Boland is the Director of the Polly Hill Arboretum on the island of Martha’s Vineyard, West Tisbury, Massachusetts. Tim moved with his wife Laura and two children to the Vineyard in 2002. Before his move to the Vineyard, he was Curator of Horticulture at the Morton Arboretum in Lisle, Illinois. A plantsman with wide-ranging interests, he is a nationally recognized author, photographer, and lecturer.
Tim has an undergraduate degree in Landscape Horticultureand a master’s degree in Botany and Plant Pathology from Michigan State University with a specialization in Plant Ecology and Systematics.
Tim studies oak trees and has traveled the world to see oaks in their natural habitats. He is a board member of the International Oak Society, and Chair of the Oak Conservation and ResearchCommittee.
Tim is also active in assembling a modern flora for Martha’s Vineyard and adjacent islands. He is a plant collections advocate and serves on the Living Collections Advisory Committee of the Arnold Arboretum, Boston, MA.
In his position as director of the Polly Hill Arboretum, Timguides the principal program areas of Living Collections, Education, Plant Conservation, and Community Ecology.
He is thrilled to see the transformation over the last several years of the Polly Hill Arboretum from a private garden to a community,regional, and national resource. A big part of this transformation is the dedicated work of the board, staff, and volunteers who so generously support the Polly Hill Arboretum through their time, and enthusiasm!
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Jason Ross is the Managing Publisher of Wood Central - theworld's largest news platform for forest-based news! Wood Central has more than 170,000 users, with over 75% of users under 45, and 47% under 35! We cover all the news on the Wood Central website, across all media channels that interest our users, with fresh content from across the world updated all day, every day.
So whether it's the next generation of mass timber buildings, the carbon power in our lithium batteries, or even the use of ColdWar technology in monitoring carbon stock across the world's forests - scroll over to Wood Central to stay informed about all the news that matters!
Jason has a passion for green buildings - probably why WoodCentral is the only platform dedicated to writing up a new and unique project case study every day! As a former Green Star Accredited Professional (GSAP), he has been an active member in driving the adoption of Green Star projects in Australia - and is pushing for greener, cleaner, and more sustainable buildingmaterials ahead of the Brisbane Olympic Games. He has advised the Queensland State Government on environmental protection, heritage, housing, and public works.
From 2018 until 2022, Jason managed the PEFC brands in theAustralian and New Zealand markets and is passionate about growing the certification awareness and compliance across the Asia-Pacific region. Still, trying to figure out what forest certification is and why it matters?
An experienced spokesperson, Jason has presented to avariety of forums, including the United Nations (Australia and New Zealand), the Property Council (Australia), Master Builder (Australia), the Building Designer Association of Australia (BDAA), the Australian Institute of Building, the National Retailers Association, the Green Building Council of Australia (GBCA) and New Zealand (NZGBC), the PEFC Council (Geneva, Switzerland), the Wood Processors Manufacturing Association (New Zealand) and the Australian Institute of Packaging (AIP).
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Alec Charais is one of the most passionate people in horticulture today. Having grown up on a family farm, his love for plants grewinto a rewarding career that today finds him collaborating with breeders and agents across the globe, searching for trees and shrubs that will beautify the outdoor living experience for everyone.
At Bailey Nurseries, a family-owned fifth-generation nurserywith growing operations in Minnesota, Oregon, Washington, Illinois, and Georgia, Alec leads the marketing and product development functions across the company. This includes successful consumer brands including First Editions®Shrubs & Trees, Endless Summer® Hydrangeas, and Easy Elegance® Roses – all brands that Bailey owns and manages worldwide. These brands are well known in many parts of the world and Bailey continues to breathe new life into theirplants through extensive breeding and trialing to ensure people have lastingsuccess.
In addition to his role as Chief Marketing & ProductDevelopment Officer at Bailey, he also serves on the Board of Directors of the National Garden Bureau and the Corporate Membership Committee of the American Society of Landscape Architects. Alec is passionate about bringing new ideas,people, and plants, to life!
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Hal and I talk about some of the highlights of the podcast thusfar. We think you will enjoy the overview if you have never listened to our podcast before. Below you will find a short list of some of the podcasts that you might want to listen to or relisten to – to see how our guests are making a dent in the climate crisis by their positive actions. We are grateful to all of our guests for sharing their amazing work! And we thank our listeners fortuning in and for all of your wonderful comments and suggestions.
We thank you!!
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Seth Lieberman co-founded Quiet Clean Philly; an all-volunteer organization dedicated to phasing out gas leaf blowers in the City of Philadelphia. Seth’s activism and articles on the harms of gas leaf blowers have been featured in the Philadelphia Inquirer, WHYY’s Studio 2 and Radio Times, Channel 6 ABC Action News, The Chestnut Hill Local, The Weavers Way Shuttle, Planet Philadelphia, and The Jewish Exponent. Seth is also active as part of a national network of municipalities seeking healthier and more sustainable communities through changing how we think about lawncare. When not volunteering, Seth runs Leadership Breakthroughs, a leadership and strategy development business focused on academic medical centers.
Dr. Bonnie Sageris a Consulting Clinical Physician to the New York State hospital system. She has lectured internationally on eyecare and has served as Vice President and advisor to several Visioncare companies.
As a clinician, she is concerned with the many detrimental health impacts that gas powered lawn equipment have on landscape workers and the general public. She is actively working with communities, medical professionals, environmental groups, and legislators to change policy and promote more sustainable landscaping practices.
Dr. Sager and Dr. Lucy Weinstein are co-founders of Huntington CALM, (Clean Alternative Landscaping Methods) a Long Island-based citizens’ advocacy organization.
Dr. Sager is also a co-founder of QCA (Quiet Clean Alliance) a national organization dedicated to educating and changing public policy on gas lawn equipment. Dr. Sager served on the advisory board of Noise Free America and has been featured in print, on television and radio addressing the topic Landscaping and Your Health.
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Ron Kinney is the production manager at Monrovia’s Oregon nursery. Ron has a degree in Ornamental Horticulture from California State Polytechnic University and has been in the industry for more than 30 years. Part of his role as productionmanager includes responsibility for tree production, both in containers and in-ground field production, at Monrovia’s California and Oregon nursery facilities.
Ron and his wife also manage and operate a 20-acre Hazelnut orchard in Oregon.
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Ari Miller is the director of design at Hinge Collective inPhiladelphia, Pennsylvania, a public interest design firm that puts community engagement and public participation at the forefront of their practice.
As both a landscape architect and arborist, Ari has always advocated for the integration and restoration of natural systems in urban design. Over the course of his 17-year career, Ari has worked as an arborist at Morris Arboretum, as a green roof design specialist at Roofmeadow, and has also led large-scale civicdesign projects at OLIN Partners. At Hinge, he uses this experience to help communities find design solutions that best support human and ecological health in their own neighborhoods through the enhancement of public space and community-led planning. Some notable projects include the Philly Tree Plan,Resilient Communities Stormwater Initiative, Unity Park, and Frankford Pause Park.
Ari has also been adjunct faculty at the Weitzman School of Design at the University of Pennsylvania and Jefferson University.
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Steven Kiiskila is the Crop and Growing Team Manager at ArbutusGrove Nursery, located at the southern tip of Vancouver Island, British Columbia, Canada. Each year his team grows 15 million container seedlings composed of 18 or more species, primarily for reforestation throughout Western Canada and the Pacific Northwest. He has been involved in reforestation his entire career; from collecting seeds to organizing and monitoring tree planting programs, although his primary focus has been growing seedlings at various nurseries throughout British Columbia. While employed as a Seedling Reforestation Specialist, he advisednurseries and tree seed orchards on growing practices. In this role, he also guided foresters and others planting trees on seedling stocktype selection and planting practices and established numerous outplanting trials to search for answers in overcoming reforestation challenges.
Steven loves the combination of art and science used to grow forest seedlings, and the fact that as a grower he is always learning something new.
One of his favorite tree growing sayings is: “Growing trees is not rocket science, it’s much harder.”
He has a Master of Science degree in Forest Biologyfrom the University of Victoria, a Bachelor of Science in Agriculture, horticulture major from the University of Guelph, and a Horticulture Diploma from Olds, College.
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Joe Lamb, founder of the Borneo Project, is a writer, activist, and arborist living in Berkeley, California. His poetry and essays have appeared in Earth Island Journal, The Sun, Caliban, Wind, Orion, and other magazines. His work is also included in the anthologies The Rag and Bone Shop of the Heart: A Poetry Anthology, Robert Bly et al editors, and Veterans of War/Veterans of Peace, Maxine Hong Kingston editor.
Joe has degrees in biology, ecology, and film. He has taught biology and ecology in the United States and in Mexico. He worked as a field organizer on the Nuclear Weapons FreezeCampaign, and as a film distributor for The Video Project. For over forty years he has tended trees in the urban forest as co-owner of Brende and Lamb Tree and Shrub care.
In 1991, under the auspices of Earth Island Institute, Joe founded the Borneo Project, an NGO that helps the indigenous peoples of Borneo secure land rights and protect their forest.
Honored by the Goldman Foundation as an “environmental hero,” Joe was featured in the San Francisco public television program, “Green Means.”
For over 30 years the Borneo Project has helped indigenous peoples map their lands, bring their case to the court of public opinion, and press for the preservation of their forests through legal action. Learn more about the Borneo Project – see the link below. Joe is firmly committed to trees as an essential part of any realistic strategy to help the world limit and mitigate the potentially catastrophic consequences of climate change.
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Mark Krawczyk is an applied ecologist, educator, and grower with a background in permaculture design, agroforestry, natural building, traditional woodworking, and small-scale forestry. He co-owns and operates Keyline Vermont LLC, teaching, designing, and consulting for farmers, homeowners, and homesteaders.
Since 2008, Mark has taught over 30 Permaculture Design Courses and been a specialist guest instructor in dozens more. He holds Diplomas in Permaculture Design and Education from the Permaculture Institute of North America. He and his wife also co-manage Valley Clayplain Forest Farm - 52 acres of field and forest in New Haven, Vermont, USA.
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Asha-Lé Davis joined the Pennsylvania Horticultural Society (PHS) as Trees Specialist in 2021 to pursue her passion for empowering people to grow tree canopy in their communities. Since joining, she has helped grow the PHS Tree Tenders program in Bucks, Chester, Delaware, and Montgomery counties to over 60 active groups who have planted 3,000+ trees. She recently took on the role of facilitating the educational workshops within the program. Prior to her work at PHS, Asha-Lé was introduced to the necessity of healthy urban tree canopy through her work with TreePhilly.Asha-Lé is a PHS Tree Tender leader in her own community, East Parkside, using her knowledge to educate her neighbors about the benefits of tree planting and care.
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Paul Hickman is the founder of Urban Ashes a pioneering company that advocates for urban wood utilization. The company transforms fallen urban trees into valuable local resources. Urban Ashes designs, develops, and implements urban wood utilization for infrastructure in collaboration with municipalities, local organizations, and businesses to support the local community.
In addition to salvaging urban wood, Paul’s organization provides meaningful employment and business opportunities to formerlyincarcerated and justice-impacted youth. This commitment resonates throughout the community, promoting safer and healthier neighborhoods through the People and Trees connection.
Paul is also one of the founding members of the national organization the Urban Wood Network (UWN).
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David Teuschleris the Chief Horticulturist for Devil Mountain Wholesale Nursery. He established the nursery’s propagation program and currently directs the propagation and inventory teams for the company’s sixteen locations across California. Davidhas worked in the nursery industry for three decades, including many years at Valley Crest Tree Company. While there, he served as Plant Health Care Manager for the Specimen Tree Division, Account Manager in the Estate Gardens Division, and, most notably, Chief Arborist for the Apple contract grow, responsible for growing over 7,000 trees – half from seed – for installation at the Apple campus in Cupertino, CA. David is a Certified Arborist and a member of the Western Chapter of the I.S.A. and the I.P.P.S. He is a 3rd generation Californian and has a BS in Ornamental Horticulture from California State University, Fresno.
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Matthew Aghai is a dedicated reforestation expert, applied scientist, and executive leader at Mast Reforestation. He currently serves as the VP of Research and Development at Mast Reforestation, General Manager of Cal Forest Nurseries, and Advisor to Silvaseed Company. His recent work focuses on scalable solutions for mitigating climate change through the development of new initiatives to modernize the reforestation supply chain and connect reforestation initiatives with natural capital markets. Matthew has been featured in several national publications for his work and real impacts, including a National Geographic article discussing national seed limitations, Mongabay articles discussing his team’s pioneering work in aerial seeding technology, and also many peer-reviewed publications.
Matthew is also a practiced and enthusiastic public speaker and actively seeks opportunities to engage with anyone and everyone about finding solutions to the challenges facing the world’s forests.
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Kim Shearer is the Curator of Living Collections and Manager of the Haerther Charitable Trust New Plant Development Program at The Morton Arboretum. In her role as curator, Kim focuses on the development and maintenance of resilient living collections that provide a germplasm resource for researchers and plant breeders seeking to address the issues of climate change; while also working with the conservation community to identify priorities that can be addressed through collections curation and research. As Manager of New Plant Development Kim works with plant breeders and the nursery industry to select, evaluate, and develop new plants for the urban and suburban built landscapes. Kim completed her Bachelor of Science degrees in Horticulture Science and Plant Biology at North Carolina State University and her Master of Science degree in Horticulture Science with a focus in Plant Breeding and Genetics at Oregon State University.
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Kristen Pullen completed her Bachelor of Science degree in Biology at Rider University. After university, she took an internship position at Longwood Gardens in Kennett Square, Pennsylvania. The internship focused on all research aspects of the public garden from tissue culture to new plant evaluation and selection. Kristen has been with the new product department at Star® Roses and Plants since 2011. She previously managed domestic and international trialing of woody plants before accepting her current role as Woody Ornamental Portfolio Manager where she coordinates the development, launch, and market evaluation of all new trees, shrubs, and edible plants. Kristen also manages the Bushel and Berry® Brand for Star® Roses and Plants, a premium branded program of plants that provide both edible and ornamental uses for the home garden.
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Lars Peter Jensen is originally from Denmark and arrived inthe U.S.A. in 2003 and settled in Brevard County Florida where helives with his wife and three children. Lars is the head of sales,marketing, and business development and part owner of the Blackmore Company.
Blackmore has been instrumental in the horticultureindustry for more than 50 years. His company holds a patent for the Air Tray®technologies system which is what drew Lars to the company.
As a systems person. Lars has a simplified but analyticalapproach to nursery production. His philosophy includes these two mottos"Don't automate a problem - remove it". And "To each action,there is a reaction".
Lars’ entry into the green industry was accidental – rightout of a Denmark college, Lars went to Seattle, Washington to reorganize andrun a small subsidiary of a Danish company. (His degree from university wasInternational Sales). This was the first time Lars came to America and he likedit .. a lot.
After his taste of the U.S., and needing a work permit,Lars went back to Denmark and went on with his career in international salesand marketing. Lars settled down in Vejle, Denmark, and had a family. One day hereceived a call from Ellepot a company in Denmark asking him to go to Americafor them. At first, he said no, but then after talking it over with his wife,they agreed to go to the U.S. and settle in, Florida. This is where he met SkipBlackmore the owner of the Blackmore Company – the distributor of the Ellepotin the U.S.
Working with Skip Blackmore, Lars learned a great deal andeventually became a partner in the Blackmore Company. This was the start of a20-year “road trip” as Lars calls it with a lot of bumps, hills, and unexpectedcurves but it all led to Air Tray® Technologies, which holds the Ellepot. This combinationis a revolution in the horticulture industry and will lead to the nextgeneration of growing efficiently and in half the time.
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Kathy Jentz is the editor and publisher of the award-winning Washington Gardener Magazine, based in Washington, DC. She is also the editor of three plant society journals: the Water Garden Journal (IWGS), The Azalean (ASA), and Fanfare (Daylily Society Region 3). Jentz hosts the popular GardenDC Podcast, which was recently named Best DC Podcast. She is also co-author of The Urban Garden: 101 Ways to Grow Food and Beauty in the City and her latest book is Groundcover Revolution. Her mission is to turn your thumb green.
A life-long gardener, Kathy believes that growing plants should be stress-free and enjoyable. Her philosophy is inspiration over perspiration.
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Kristin Ohlson is a writer from Portland, Oregon. Her new book Sweet in Tooth and Claw: Stories of Generosity and Cooperation in the Natural World – which the Wall Street Journal calls “excellent and illuminating”--probes the mutually beneficial relationships among living things that undergird the natural world. Her last book was The Soil Will Save Us: How Scientists, Farmers and Foodies are Healing the Soil to Save the Planet, which the Los Angeles Times calls “a hopeful book and a necessary one…. a fast-paced and entertaining shot across the bow of mainstream thinking about land use.” She appeared in the award-winning documentary film, Kiss the Ground, to speak about the connection between soil health and climate health.
Ohlson’s articles have been published in the New York Times, Orion, Discover, Gourmet, Oprah, and many other print and online publications. Her magazine work has been anthologized inBest American Science Writing and Best American Food Writing.
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Nykia Perez Kibler, co-founder of Philly Tree People (501c3), is an ISA Certified Arborist® with a Master in Environmental Studies degree with a focus on Environmental Biology from the University of Pennsylvania (Penn). She also has a Master in Liberal Arts from Penn, a Certificate in Landscape Plants from Temple University, a Master of Library & Information Science from The University at Buffalo, and a Bachelor of Fine Arts in Fine Art Photography from Rochester Institute of Technology. Her two capstones from Penn were: “Philly Tree People: A Case Study on the Formation of a Non-profit Community-based Tree Planting and Tree Care Organization" where she outlined the Pruning Club program and "Management of the Urban Forest: A Zip Code Level Approach" where she outlined the plan for a Green Skills Youth program both of which were heavily modeled after programs after UC (University City) Green in West Philadelphia. She was an intern at Bowman’s Hill Wildflower Preserve where she worked in their native plant nursery, participated in interpretation activities, led guided walks for families, assisted with grounds maintenance, marketing, and data collection. Nykia is generally interested in ecological restoration, urban ecology, urban wildlife, ornithology, wetlands, urban forestry, native plants, biological conservation, road ecology, environmental education, nonprofit leadership, urban orchards, food gardening, green walls, children’s play spaces/gardens, and citizen science. Professionally, she works as a library director and research librarian providing and developing research services for faculty and graduate students at Penn, supporting grants, and disseminating research results via websites and social media. She’s also a girl scout troop leader and engages youth in tree planting, pollinator gardening, camping, and citizen science.
Jacelyn Blank is an ISA Certified Arborist® with a bachelor’s in fine arts and a master’s in education with Pennsylvania teaching certifications in Elementary and Special Education. She is one of the three co-founders of the federally recognized not-for-profit Pennsylvania Horticultural Society Tree Tender organization, Philly Tree People. When Jacelyn isn’t volunteering her time with Philly Tree People she teaches preschool children part time at a not-for-profit play school in Fishtown called By My Side, where she focuses on child led play and interests, increasing students’ social emotional understandings through incidental teaching opportunities, as well as introducing students to a variety of environmental and art related educational experiences. She also co-founded the Friends of H.A. Brown, her local catchment public school where she completed her student teaching in 2011 and where her son currently attends.
Jacelyn launched her own small business; Blank Slate Trees and Gardens, in 2021 where she works with Philadelphia clients on landscape design, garden creation and maintenance, installation and care for trees and installation of plants for window boxes and planters with an integration of native plants. She is currently completing her Pollinator Steward Certificate through the worldwide organization, Pollinator Partnership. Her ultimate career goals are to combine her love of teaching, arboriculture, and horticulture by continuing Philly Tree People’s Green Corps, a youth employment, education and empowerment group hiring students living and attending school in the Kensington neighborhoods in order to encourage more urban youth to move into the Green Industry while caring for Kensington’s tree canopy and learning through hands-on experiences.
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Since April 2016, Craig Roncace has been the Urban Park Manager for the University of Pennsylvania. The Urban Park Department consists of five shops, each with its own Supervisor, and 58 staff who represent two unions. The Urban Park operation covers campus landscaping/maintenance, athletic field management, Penn Park, all hard surface maintenance, and the campus-wide waste/recycling program.
Before Penn, Craig worked in multiple roles as the Grounds/Area Manager for Temple University, at both their Ambler and Main Campus locations.
Craig was first introduced to the landscaping world by way of the golf course. He gained hands-on knowledge at an early age and quickly developed a love for the outdoors. He earned a degree in turfgrass management from Rutgers University, and within a few years, became the Golf Course Superintendent for a local private golf course in New Jersey.
Craig spent three years as a landscape manager for a large New Jersey based landscaping corporation, where he managed multiple teams in both turfgrass and horticulture maintenance within the local New Jersey/Pennsylvania Region.
In addition to his turfgrass education, Craig earned his MBA from Temple University’s Fox School of Business, and his B.A. from Eastern University.
Craig is an active member of multiple committees at Penn. One is Penn’s Ecological Landscape and Stewardship Plan (ELSP) Committee. The ELSP committee helps ensure Penn continues its efforts, from planning/design to maintenance, of successfully following a more ecological landscape within the ever changing functionality of the campus. These efforts cover, but are not limited to, storm water management, mature tree preservation, native plants, research, and training.
In addition to his current position at Penn, Craig is the owner of SportsTurf Management Resources, LLC which is a sports turf, lawn, and landscaping consulting firm. Craig enjoys helping others manage their own properties, both residential and professional, with a portion of the proceeds going towards suicide awareness.
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Markku Koivisto keeps an ear to the ground and an eye to the sky, connecting the needs of organizations around the world with the power of drone data. As Chief Business Development Officer, he combines analytical expertise with a can-do attitude to ensure GLOBHE delivers the right data to the right customer at the right time.
While a young industry, Markku brings many years of experience in developing drone operations around the world. Connecting to GLOBHE’s mission of making an impact on our planet, Markku has also contributed to peacekeeping missions as well as worked within the defense industry pursuing global business for a number of years.
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Andrew Conboy enjoys sharing his passion for trees and their many benefits with anyone who will listen. He is an ISA-certified arborist who most recently worked on the Urban Forestry team at the Morris Arboretum in Philadelphia. In 2020, he created Colonial Canopy Trees, a non-profit organization that leads ecological restoration efforts in the greater Philadelphia area. In his free time, Andrew creates videos about environmental topics and shares them on social media. Through his work, he hopes to inspire people and change the way we view and value our natural lands, native plants, and wildlife. He studied Environmental Science at Chestnut Hill College and Evolutionary Biology in graduate school at Lehigh University.
After retiring in 2020, Karen Kabnick wanted to do everything she could to help mitigate the damages of climate change and habitat destruction. Karen met Andrew at a volunteer event and was thrilled to learn he, too, loved to rescue and nurture seedlings of native trees. They shared that hobby. She learned all about the countless benefits of trees and how to plant them from Andrew, friends, courses and reading, and wanted to use her new-found knowledge to help Andrew with Colonial Canopy Trees to restore our local canopy and re-establish wildlife habitats.
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Bio for Rick Thaler
Rick Thaler was born and raised in Rochester New York. He tried going to college, but he didn’t stick with it. After looking for a job he was inspired by the Whole Earth Catalogue (WEC) and began to explore carpentry. His exploration of the carpentry trade led him to Corrales, New Mexico. It was in Corrales that he decided to resume his studies and attended the University of New Mexico but after one semester he dropped out again and started working in construction, building adobe houses, doing carpentry work, and making furniture. He was inspired by James Krenov, Sam Maloof, and Wharton Esherick, and deeply inspired by George Nakashima and his free-form but highly disciplined designs. Rick was also inspired by the solar renaissance in New Mexico and the idea of sustainable, low-waste building and living.
When Rick got married and his first child arrived he needed a reliable income and started working in a commercial wood shop. Eventually, he became a project manager and estimator, and after 10 years was able to buy the shop and ran the business on his own. Rick eventually grew the business into a $10 million-dollar-a-year business with 100 employees and did projects all over the southwest and around the country. Rick sold the business in 2019 and bought a portable sawmill to use as a hobby. After all of his carpentry work, he still thought of George Nakashima and his creations.
Rick’s son Jacob got interested in the sawmill and they started a business together making live edge slab planks. They wound up building a woodworking shop to go with the mill. Rick came full circle to his roots of making custom furniture. This time he had better equipment and an ideal place to work.
Live edge timber from local salvaged trees is now the backbone of their business. Rick and Jacob call it treeincarnation.net. They power the shop entirely with an array of solar panels. With all the carbon they are sequestering from tree rescues they are close to net carbon neutral in their business. Rick says they are a good example of combining sustainability, waste reduction, craft, and profitability for a right livelihood in environmentally difficult times.
Bio for Jacob Thaler
Jacob Thaler was born and raised in Corrales New Mexico. He never liked school and struggled to learn the way other people do. At age 16 he took the GED test and got his high school diploma. He worked at various jobs but realized that he didn’t want to work for someone else, so he opened his own business in Colorado. He had a successful business there from 2015 -2020. After finding that he had a daughter on the way he decided to sell his business and move back to New Mexico to be near family. Ariella was born right at the beginning of Covid, with a heart defect that required surgery at 10 days old. Jacob and his partner Angelica couldn’t work because they were in and out of the hospital for the next year. Now their daughter Ariella is a happy, healthy three years old now.
Jacob got interested in his dad’s hobby sawmill operation between hospital appointments, and they discovered that they liked working together. Jacob enjoyed both the mechanical aspect of running the mill and the joy of opening up ordinary logs and finding the beauty inside. They decided to make a business out of the mill with a focus on turning dead, downed, and unwanted trees into planks for sale. This part of the business quickly led to a full-scale furniture operation, along with custom milling for other people in the business. Jacob still runs the saw and operates the kiln and is learning the furniture-making trade from his dad and their shop partner. He is looking forward to growing the business and keeping it sustainable for the future.
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Jeff Lowenfels is a humorous and entertaining lecturer. He is a reformed lawyer and author of Timber Press' award-winning and bestselling books, Teaming With Microbes: The Organic Gardener's Guide to The Soil Food Web and Teaming With Nutrients: The Organic Gardener’s Guide to Optimizing Plant Nutrition and completing the trilogy, Teaming With Fungi, The Organic Grower’s Guide to Mycorrhizae and Teaming With the Bacteria; The Organic Gardener’s Guide to Endophytic bacteria.
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Hannah Lewis is the author of Mini-Forest Revolution: Using the Miyawaki Method to Rapidly Rewild the World, published in June 2022 by Chelsea Green. A French translation of the book was released in January 2023 by Editions Eyrolles in France. Hannah has a Master of Science in Sustainable Agriculture and Sociology from Iowa State University and a Bachelor of Art in Environmental Studies from Middlebury College. She lives in Minneapolis, where she works for the non-profit Renewing the Countryside to build sustainable local and regional food systems and to plant mini-forests.
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Following several years working in heavy industry, Steve Ebner’s love affair with wood began in 1981 when he started working as a carpenter in Philadelphia. After twelve years of carpentry experience, he started his own furniture shop which would lead to the creation of Manayunk Timber, Inc., the premier urban sawmill in Philadelphia.
Manayunk Timber processes lumber reclaimed from Philadelphia industrial-era factories built from the 1880s through the 1920s and local trees that are no longer viable, due to disease, storms, or construction. Beginning in 1985, Steve began purchasing 300- to 500-year-old timbers from the demolition sites of the old factories. In the 1990s, Manayunk Timber became the only Philadelphia sawmill to capture local trees instead of sending them to landfills.
With a decreasing supply of reclaimed timber from old factories, Steve believes the future lies in the inexhaustible supply of local trees. To be processed into lumber and wood products, the local trees are sawed, stacked, and then dried (a year for every one-inch thickness). Customers can choose between a huge inventory of seasoned (by air-drying) walnut, cherry, oak, cedar, locust, osage orange, and sassafras, or reclaimed beams and joists with aged, deep patinas.
Steve’s commitment to educating Philadelphia about the beauty and utility of wood goes beyond sawing lumber. Recently, he and his team planted a 3,000-square-foot forest of native trees and bushes, designed to mirror a Pennsylvania forest, in what was previously a parking lot on the lumber yard’s premises. Steve hopes that visitors to Manayunk Timber will make connections between the importance of preserving native trees and the furniture and building materials that enrich our everyday life.
Steve is legendary in the wood business for his vast knowledge of reclaimed and native timbers. In the last six years, he has been joined by his daughter, Rebecca, in operating Manayunk Timber. Together, they have gained national attention with a video on urban sawmilling.
Now, Rebecca is putting her own stamp on Manayunk Timber’s future vision in support of sustainability.
Rebecca Ebner is the manager of Manayunk Timber. Bringing several years of experience working in organic vegetable and animal farms and organizations focused on expanding access to healthy foods in Philadelphia, she joined Manayunk Timber in 2015. Over the past six years, Rebecca has learned every aspect of the business, from milling and sawing lumber to furniture construction. In her current role as manager, she is responsible for activities such as coordinating customer service, generating social media content, managing the showroom, and assisting in overseeing the yard and with material acquisitions.
Rebecca graduated from Barnard College in 2012 with a BA in Urban Studies and Environmental Science. She brings a passion for urban sustainability and community engagement, a commitment to Philadelphia, and involvement in creative and artistic projects to her work with Manayunk Timber. Moving forward, Rebecca’s focus is the future of the company; she hopes to continue Steve’s dreams and make Manayunk Timber a sustainable part of Philadelphia’s small-business community for years to come.
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Roby Babcock is the Marketing Director at Iseli Nursery, a wholesale dwarf conifer and maple grower located in Boring, Oregon. Roby has a Bachelor of Arts in International Studies from the University of Oregon and a Master of Science in landscape architecture from the University of Arizona. After graduating from the University of Arizona, Roby managed an 11-acre cactus and tree nursery and did freelance design. When he returned to his home state of Oregon a decade later, he took a position at Portland Nursery and served in a variety of roles, including coordinating the displays and managing their e-commerce website. Gardening has been a passion since his childhood and he has created an expansive garden at his home that blends zone-defying cacti, agave, and succulents with specialty conifer specimens, manzanita, and plants native to the Pacific Northwest.
Roby is a photographer, and his passion has led to many opportunities, including his position at Iseli Nursery, in Boring Oregon. Roby is responsible for photographing new plants, updating the photo library, and documenting the garden. Developing social media content in combination with the Iseli website. He helps to communicate information about Iseli’s plants and goals as a company. Currently, he is working with a team to produce the new catalog. He has also redesigned sections of the Jean Iseli Memorial Garden. This position has enabled him to learn about the hundreds of unique cultivars Iseli grows and the many steps in the process of bringing them to market.
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Carey Russell is a naturalist, photographer, and filmmaker. He founded The Dendro Lab, a platform to foster a broader public awareness of dendrology, and is the author of the soon-to-be-published Tree Identification for Everyone (And Why It Matters). As a photographer, he is the author of The New Arcadians: Photographs from Scout Camp and the upcoming photobook The Winter Forest. While as a filmmaker, he has worked with director, Terrence Malick, as an associate producer and editor of The New World; assisted cinematographer Emmanuel Lubezki on The Tree of Life; and directed and photographed the 10-part documentary series Tibetan Stories. Carey holds a master’s degree in forestry and is a member of the International Dendrology Society. He’s a certified Interpretive Guide through the National Association for Interpretation and a certified Master Naturalist in New York State where he is also a licensed trail guide.
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Leslie Berckes is the Executive Director of the Society of Municipal Arborists (SMA). She brings over a decade of experience in urban forestry to theorganization, having served as the Executive Vice President and Des Moines Program Director for Trees Forever, a Midwest-based non-profit. Leslie is anISA Certified Arborist and holds a master’s degree in Public Policy with an Environmental Policy emphasis from the University of Northern Iowa in additionto a bachelor’s degree in Marketing.
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Jennifer Alger is President of Far West Forest Products and has been working with urban salvaged woods for over 25 years. She is the director of the Urban Wood Network Western Region, a membership network that connects tree managers, arborists, lumber producers, and makers to connect all links in the urban wood supply chain. She is also the founder of USRW Inc., which developed the first-ever Urban Wood Standards for North America. These Standards will be a game-changer for the industry and for the first time allow Chain-of-Custody and certification for urban wood, known as USRW Certified Urban Wood. She has worked with an expert team of developers and customer experience specialists on the build-out of Urban Lumber Market with AncesTREE™ an inventory management system and enterprise application that will allow users to easily adhere to the industry Standards, track the chain of custody, manage their inventory, and better manage and grow their urban lumber businesses. Additionally, Jennifer has recently opened a store in Californiawhere Urban Wood Network members can sell their USRW Certified Urban Wood.
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Paul Cox is the Vice President and Principal at Environmental Design, Inc. He is a graduate of Texas A&M University and attended the University of Houston to study international business and the Spanish language. Paul is a certified arborist through the International Society of Arboriculture, and he is credentialed as a consulting arborist.
His experience in the tree industry includes contract negotiations, tree preservation, plant health care, project management, and tree relocation to name a few. Paul’s responsibilities have included high-profile sites which include the National September 11th Memorial in Lower Manhattan, the Flight 93 Memorialin Shanksville, Pennsylvania, Governors Island Park installation in New York, and the Nasher Sculpture Center in Dallas, Texas.
Paul’s current responsibilities include multiple business units operating in the Eastern United States, Canada, Mexico, Central America, and Europe.
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Michael Taylor is an experienced Nursery Manager and Growerpassionate about helping nurseries improve plant quality and workflows. He iscurrently working on projects across North America that increase treeproduction capacity for reforestation, urban forestry, plantation forestry, andwildfire restoration.
Michael does consulting work with the Blackmore Companywhich comes up with “solutions designed for the advancement of agribusiness.”The company’s automated machinery addresses tree seedling root issues while improvingthe overall quality of the seedlings.
A self-proclaimed tree nerd, Michael enjoys diving deep intothe physiology and morphology of plants to understand their needs. He is a sticklerfor root architecture and believes we shouldn’t have to trade quality forproduction.
When he’s not helping people grow trees, he lives in Floridawhere he helps grow high-end tropical foliage at his family’s nursery. Prior tomoving to Florida, Michael spent 15 years in the forestry profession in thePacific Northwest managing large-scale bareroot tree farms, greenhouses, andseed processing plants. Michael earned a Master of Science in Forest Science inNursery Management and Reforestation and a Bachelor of Science in Forest Managementfrom Oregon State University.
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Anthony Sebastian Buscaino was born and raised in Brooklyn,New York and is a third-generation Italian American. His ancestral roots arefrom Sicily and Calabria.
During his summers attending university, he worked with ahorticulturist as a gardener in various parks, church grounds, residentialproperties, and rooftop gardens. During his studies, Anthony became intriguedwith horticultural therapy. Through a Directed Studies Program at TempleUniversity he participated in an internship at New York City’s Rikers IslandPrison Complex for the Horticultural Society of New York’s GreenHouseProgram. Anthony acted as an instructorworking directly with incarcerated individuals. Shortly after his internship, he graduated from Temple University with aBachelor of Science degree in Landscape Architecture.
After graduation, Anthony applied for an internship at NewYork City Parks. Since that time he has been working as a designer and projectmanager for the Capital Projects Division. His team works in the Borough ofQueens where Anthony has worked on plazas, playgrounds, triangles, ballfields,gardens, pathways, and dog parks.
He continued his education while working for NYC Parks and receiveda permaculture design certification and took his tests to receive his landscapearchitecture license.
In addition to Anthony’s full-time position as a landscapearchitect, Anthony’s zeal for creating art has led him to exhibit his artworkin groups and solo shows throughout New York City.
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Tom Smarr is the Executive Director at Jenkins Arboretum & Gardens in Devon, Pennsylvania. He holds a Bachelor of Science degree in Environmental Studies from the Slippery Rock University of Pennsylvania and a Master’s degree in Urban Horticulture Studies from the University of Washington in Seattle. He has worked for established institutions such as the University of Washington Botanic Gardens in Seattle and the Native Plant Trusts’ botanical garden “Garden in the Woods” in Massachusetts. Tom’s most notable work has been leading horticulture at newly opened urban parks such as the Rose Fitzgerald Kennedy Greenway in Boston; the High Line in New York City; and The Parklands of Floyds Fork in Louisville, Kentucky.
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Kristin Biddle is a horticulturalist, Trustee, and Chair of the Horticultural Committee at Andalusia Historic House, Gardens, and Arboretum. Biddle earned a degree in Horticulture from Temple University, Ambler, Pennsylvania, and brought her passion for gardening to several public gardens, including The Brooklyn Botanic Garden, Wave Hill, The Mt. Cuba Center, and Historic Bartram’s Garden. She then served as a trustee on the boards of The Mt. Cuba Center, Bartram’s Garden, and The Ambler Arboretum. Biddle has worked at Andalusia since 2005 and focuses on maintaining its historic gardens, manages the Garden Volunteer Program, and sometimes gets to garden.
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Merissa MacDonald is a Certified Arborist throughthe International Society of Arboriculture and the Southwest Tree ProgramCoordinator at Bartram's Garden, in Philadelphia, Pennsylvania. In her work,she leads a cohort of high school urban foresters and encourages them toexplore green Industry jobs from arborist to landscape architect and any job inbetween. Her work also includes community organizing around tree plantings incollaboration with partners at PHS (the Pennsylvania Horticultural Society).The goal is to increase the current 8% tree coverage rate of SouthwestPhiladelphia, with a focus on the neighborhood just outside Bartram’s Garden.Merissa has a passion for landscape design and community planning andincorporates the two into her urban forestry curriculum.
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Sara Street is the green guru of First Community FoundationPartnership of Pennsylvania. As the manager of Williamsport’s local naturepreserve, Rider Park, she fills the roles of forest ecologist, wildlifebiologist, environmental educator, working maintenance foreman, volunteercoordinator and more.
With degrees in landscape architecture, ecologicalrestoration, park management, and landscape technology, Sara brings a wealth ofknowledge and experience to her role. As the steward of nearly 900 acres, sheis responsible for encouraging forest health and longevity, managing invasiveplants and pests (like spongey moth and hemlock elongate scale), and plantingnative plants to enhance the park’s biodiversity. She encourages wildlifehabitat by encouraging landscape types that aren’t present at Rider Park (likea shrub-dominated savanna on the edges of the forest and meadows). Sara alsomaintains trails, coordinates volunteers, and shares her passion for nature andwildlife with visitors.
Even when she’s not on the job, Sara spends a lot of timeoutside—hiking, gardening, swimming in the West Branch of the Susquehanna and Loyalsockcreeks and attending soccer events with her son.
“I lived and worked in northwest Washington state, and the trees there are veryimpressive in stature, height, and density. But the range of species pales incomparison to the richness of North Central Pennsylvania. I adore walkingthrough the forest, looking at patterns, and identifying trees!”
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Rebecca Johnson is an ISA Certified Arborist and a true arborholic. She is addicted to helping trees and the people who care for them. Rebecca regularly provides education to fellow arborists and the general public. She serves on the Board of Directors for the Texas Chapter of ISA as its president and is a private consulting arborist, teaching homeowners about proper tree care. Rebecca has been involved with the Certified Arborist prep courses since 2011 and was part of the cadre responsible for bringing the Certified Arborist prep class to Austin, Texas in 2015. She currently coordinates the Austin class.
Rebecca was recognized with the 2020 ISA President's Award for her work with Women in Arboriculture. She is a TCIA Certified Treecare Safety Professional, Tree Risk Assessment Qualified, and holds the Texas ISA Oak Wilt and Wildfire Risk Reduction qualifications, and has a degree in Forestry from Oklahoma State University. She spends her free time looking at and admiring trees and spends quality time with her family and pets.
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Ethan Olson is the owner of Walburn Run Nursery located in Brockway, Pennsylvania. His main plant focus at his nursery is on fruit and nut trees along with berried shrubs and edible herbaceous plants. Presently, Ethan spends the majority of his time growing and collecting the American chestnut (Castanea dentata). His mission is the preservation of a diverse chestnut germplasm in hopes of getting this once-great species back into the environment as a productive component of the northeastern forest ecosystem. Ethan has a bachelor’s degree in landscape architecture from Temple University and is an avid outdoorsman.
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With more than 14 years in the horticulture and arboriculture industry, Rob Shaut joined Casey Trees, an Urban Forestry non-profit, in March of 2018. He has contributed to the operational efficiency and the expansion of their scope of work. Thanks to the leadership of Rob, Stormwater Low Impact Development and Best Management Practices are now an integral part of the Casey Trees portfolio, along with tree installation, pruning, and maintenance. Previously, Rob completed the two-year Professional Horticulture Program at Longwood Gardens in Pennsylvania, studied at the Royal Botanic Garden Edinburgh, and received a Bachelor of Science from Clemson University in business management. He spent five years working as a project manager and garden designer for Shimizu Landscape Design, a Maryland-based design and build firm. He worked for two years as a project manager for Cotswold Gardens, a design and build firm in West Grove, Pennsylvania. Rob is a certified Arborist and Tree Risk Assessment Qualified. He is currently a member of the MAC-ISA Board of Directors and the TREE Fund Board of Directors. As the Director of Tree Operations at Casey Trees, Rob focuses on increasing canopy coverage, stormwater mitigation, heat island mitigation, and phytoremediation. Casey Trees targets lower canopied areas and equity emphasis areas around our nation’s capital.
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John Perlin is a Professor and Visiting Scholar in the Department of Physics at the University of California, Santa Barbara. He is the author of the newly released edition of A Forest Journey: The Role of Trees in the Fate of Civilization.
Perlin says, “It is my hope that the new edition of A Forest Journey will make clear the imperative humanity faces because losing our forests would not merely be the end of nature, it could mean the end of us.”
Originally published in 1989, the book’s comprehensive coverage of the major role forests have played in human life …….earned its recognition as a Harvard “Classic in Science and World History” and as one of Harvard’s “One Hundred Great Books.”
In the new edition, Perlin cites data on how humanity has cut down half the trees on the planet in the last 12,000 years, and that deforestation continues at an alarming pace with 15 billion trees removed per year. That’s 500,000 square miles of forested land lost since the first edition of A Forest Journey was released.
Perlin is also the author of three other books: A Golden Thread: 2500 Years of Solar Architecture and Technology; From Space to Earth: The Story of Solar Electricity; and Let It Shine: The 6000-Year Story of Solar Energy.
Perlin lives in Santa Barbara, California.
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Sarah C. Low is a business management consultant, ecologist, and educator. Sarah has been a change-maker in municipal governments, federal agencies, and nonprofit organizations. She is the Founder of Tacoma Tree Foundation, an organization formed to help grow a greener, healthier, and more connected Tacoma. Sarah is now the principal and owner of Strategic Nature, LLC, which specializes in helping organizations and individuals make meaningful changes.
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Hugh Weldon gained early knowledge of horticulture working on vegetable farms in Ireland – his home country. He earned a horticulture certificate from the practical experience he gained which led him to a supervisory position with a landscape nursery with 30 staff members. He was in the position for 5 years. Hugh then worked as a foreman in a flower and bulb nursery for two years where he continued to broaden his horticulture background.
He emigrated to the U.S., for greater opportunities in the horticulture industry in 1993 and worked with an arborist learning all aspects of tree care, planting, pruning, and removal. With tree experience under his belt, Hugh worked with a company to learn numerous aspects of landscape maintenance of residential and business properties which included snow removal.
In 1995 Hugh applied for a grounds position at Villanova University and continued his education earning a Horticulture Degree from Temple University. After several promotions and numerous years of work, Hugh became the Horticultural Supervisor followed by Horticultural Manager. He can now say he has been happily tending the staff and the landscape at Villanova University for over 27 years.
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Mayor Tim Schultz has been a resident of Hatboro for over 20 years. Devoted to his community, Tim has served in the capacity of Borough Historian, a member of the Hatboro Tricentennial Committee, Chairman of the Hatboro Holiday Parade, and the President of the Greater Hatboro Chamber of Commerce.
Mayor Schultz also joined the national Mayors for Monarchs program in 2020 dedicated to improving pollinator survival across America.
Tim is also the proud owner of Bright House Creative Services, LLC, and loves being behind a camera. In addition to his photography business, Tim is a Realtor at Class Harlan Real Estate.
Tim, along with his wife DJ and five children, have a passion for all things Hatboro and have dedicated themselves to improving the Borough in every way possible.
Tim’s strong leadership and devotion to the Hatboro community shines through his work as President of the Greater Hatboro Chamber of Commerce and now as Mayor.
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Ashley Miles is the Administrative Production Assistant at Ruppert Nurseries and has held other positions such as In-House Salesperson and Inventory Manager. Ashley has been with Ruppert since 2013. She has a Bachelor of Science in Environmental Biology from the SUNY College of Environmental Science and Forestry. Ashley is also a Certified Professional Horticulturalist. Ashley is an enthusiast of the natural world. Trees have inspired her both personally and professionally and she is grateful that trees have been the focus of her career.
and
Kelly Lewis is the General Manager of Ruppert Nurseries. Kelly was raised in the nursery business working at a family Garden Center from the time he was old enough to be of any help. After a two-year vocational horticulture program in high school, he started working full-time for the family business in a variety of roles and learned the business side of the horticulture industry. After years of traveling the country as a purchaser for the garden center, he decided being a grower was a better fit for the agricultural lifestyle he desired. Starting in 1994 for Ruppert Nurseries, Kelly first worked sales but quickly transitioned to managing the then relatively small tree-growing farm. Since that time, the farm has grown to over 900 acres and planted more than 250,000 trees. Kelly has always been fortunate to be able to attend countless trade shows, seminars, and educational events during his career. Including the first two-year EAGL class (Executive Academy for Growth and Leadership) where he earned a certificate in Applied Horticulture Business from Texas A&M with Dr. Charlie Hall. Kelly has served on the Northern Virginia Nursery and Landscape Association, The Maryland Nursery, Landscape, and Greenhouse Association, Montgomery County Horticultural Advisory Board, and on the Board for Trees for The Future.
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Jill Rose is the State Forest Pathologist with the Pennsylvania Department of Conservation and Natural Resources (DCNR) Bureau of Forestry since September 2019. Previously she was the Forest Health Programs Manager and State Forest Pathologist for the West Virginia Department of Agriculture, Plant Industries Division for 17 years.
Jill’s studies included an Associate Degree in Wildlife Technology from Penn State University from the DuBois campus and a Bachelor of Science in Wildlife Sciences from the University of Idaho. Jill also holds a Master of Science degree in Plant Pathology from Washington State University.
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Steve Shreiner is the president and founder of Schreiner Tree Care established in 1986. He is a Master Arborist, and Tree Risk Assessment Qualified. Steve has proven successful in developing long-standing client and vendor relationships, many of which are twenty-five-plus years strong. He also enjoys working with clients who care about their trees, landscape, and the greater community. Shreiner has served on various local arboreta, environmental education, and business boards.
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Sir Tim Smit KBE (Knight of the Most Excellent Order of the British Empire) studied Archaeology and Anthropology at Durham University. This began a lifelong passion for regeneration and putting his passion and energy into his work. He has followed his occupations embracing his many interests from Archaeology through music to wreck diving, Rare Breed animal husbandry, and building restoration. In 1990 he ‘discovered’ and then restored ‘The Lost Gardens of Heligan’ with John Nelson and remains a director. Heligan is now one of the UK’s best-loved gardens having been named ‘Garden of the Year’ by BBC Countryfile Awards in March of 2018. Tim’s book The Lost Gardens of Heligan won Book of the Year in 1997.
Today, Tim is Executive Chair and Co-founder of the multi-award-winning Eden Project in Cornwall. Since its opening in 2001, over 23 million people have come to see a once sterile pit, turned into a cradle of life. Eden contains world-class horticulture and startling architecture symbolic of human endeavor and our dependence and unbreakable part in the systems of the natural world.
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Nan Sterman is a California native, garden expert, garden designer, author, botanist, and award-winning communicator. Nan has long been dedicated to the transformation of planted landscapes from overly thirsty and resource-intensive to climate appropriate and sustainable.
In addition to designing gardens, Nan works hard to connect plants to people and the planet. Some examples of that work include:
· Heraward-winning public TV show, A Growing Passion which Nan hosts, produces, and writes. Forty-eight episodes air on KPBS TV in San Diego, on CREATE TV, and are available online at www.AGrowingPassion.com.
· Nan’s most recent book, Hot Color, Dry Garden, is a guide for creating color-filled, waterwise gardens. She’s written hundreds of articles for newspapers and magazines, too.
· In 2014, Nan founded the San Diego Gardener Facebook group, where more than 16,000 people discuss plants and gardening in Southern California.
· At the beginning of the COVID quarantine, Nan co-founded Grab & Grow Gardens to support food-insecure communities during the COVID-19 crisis and beyond. To date, Grab & Grow Gardens has supplied more than 26,000 starter vegetable gardens for families and seniors in need across the region.
· Nan leads tours to garden adventures around the world, including Europe, South Africa, Costa Rica, and the US.
· In 2022, Nan kicked off the online Garden School, targeted at passionate home gardeners. In addition to a monthly garden membership, Nan teaches online and in-person seed-starting workshops every spring.
Nan’s approach to gardening dates back to the 1970s when she was involved in the first wave of the sustainability movement. She trained at the Integral Urban House in Berkeley, California, earned a botany degree from Duke University, a master’s in biology from UC Santa Barbara, and a master’s in instructional design from San Diego State University.
Prior to delving into the gardening world, Nan created curricula, training programs, and educational materials for Fortune 500 companies, zoos, aquaria, and not-for-profit organizations. Her ability to take complex information and create effective educational programs is one of her greatest strengths, and a major source of her successes.
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Anthony Tresselt is a certified arborist, arboricultural safety consultant, trainer, and 30-year student of arboriculture and tree climbing. He is a lead instructor with Arboriculture Canada (ArbCan) Training and Education. As a part of the amazing ArbCan team, he travels, educates, facilitates, and writes helping to spread the word about safe, efficient arboriculture.
Anthony’s mission as an arborist, leader, educator, and human is to have a positive impact of growth and achievement on everyone he interacts with whether in person, through books and articles, or through online media. To quote his mentor and philosophy professor, Dr. R. Ginsburg, “Teaching is the hope I practice.”
He is also a regular contributor to several arboricultural trade magazines and has two works of fiction based on trees and tree climbing novels published, Free Falling: An Arboreal Novel and Fall Factor both can be found on Amazon.
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Andrew Bunting is Vice President of Horticulture and leads the utilization of planting and design to promote environmentally sound gardening practices at PHS (Pennsylvania Horticultural Society). Andrew has elevated each of the departments he oversees and has increased the brand and visibility of PHS through their respective work.
Andrew received his Bachelor of Science in Plant and Soil Science from Southern Illinois University. Prior to arriving at PHS, Andrew worked at the Chicago Botanic Garden, Chanticleer Garden, and the Scott Arboretum for a tenure of 27 years. He has received the American Public Gardens Association’s Professional Citation, Chanticleer Scholarship in Professional Development, and the Certificate of Merit from the Pennsylvania Horticultural Society. He also serves on the Board of Magnolia Society International. Andrew published his first book in 2015, The Plant Lover’s Guide to Magnolias.
Andrew enjoys bird watching, travel and, of course, gardening.
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Christy Rollinson is the Forest Ecologist at The Morton Arboretum in Lisle, Illinois. As a research scientist, much of her work looks at how individual trees, forest communities, and ecosystems respond to changing weather and climate. Christy’s work involves a variety of approaches, including tree rings, phenology and citizen science, and computer modeling. Christy holds a Bachelor of Arts in Biology and Environmental Studies from Oberlin College and a Master of Science and Ph.D. degrees in Ecology from Penn State University. At The Morton Arboretum, Christy has been highly involved with science and climate change communication to a variety of professional and non-professional audiences.
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Anelle Ammons is an ISA Certified Arborist® and ISA Certified Arborist Utility Specialist®. She has a Bachelor of Science degree in biology from the University of North Carolina at Asheville and a Master of Horticulture Science from North Carolina State University. Anelle works as a contract Utility Arborist and spends her free time gardening, hiking, and writing children's adventure books.
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At the intersection of power tools and creativity, John Mahoney found his niche – turning otherwise forgotten urban green waste into dazzling works of art. Born into a family of tree workers, arborists, and creatives, it was no mystery that Big John would find himself carving his own legacy into the Urban Forest just as his dad did before him. When he began chainsaw carving at the age of 22, John witnessed the emotional connection people had to his wood art pieces that could have otherwise so easily become mulch or firewood.
Covered in sawdust and immersed in the competitive beard world, John found himself at a crossroads between one-off artistic ventures and a desire for a greater purpose. He found himself itching to raise awareness for the importance and value of urban trees as a precious bioresource, from their carbon-capturing capabilities to their unique, unrivaled beauty. This practice has turned into a mission of salvaged wood stewardship.
Today he oversees Street Tree Revival, an Urban Wood Recycling program founded by West Coast Arborists, Inc. (WCA, Inc.) California’s leading tree maintenance and management company for communities who care about trees. His primary purpose is creating quality, one-of-a-kind lumber while making a lasting positive impact on our environment.
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Tahia Devissher is a Banting Research and Teaching Fellow at the University of British Columbia (UBC) Faculty of Forestry. She studies how to manage forests and other greenspaces in and around cities to support human well-being and build social-ecological resilience to climate change. She is also interested in developing practical strategies to strengthen the relationship between urbanites and nature. In past work with the Stockholm Environment Institute, Tahia led research to support climate change adaptation working with local communities, NGOs, and governments in more than 20 countries across the Global South. In most of her projects, she applies interdisciplinary approaches by integrating methods from quantitative modelling to participatory mapping, and qualitative assessment. Tahia has a Ph.D. in ecosystems science from the University of Oxford.
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Mike Toffan is the founder and Executive Director of Project Forest. In October of 2020, Project Forest launched with a mission to create a community of environmentally responsible businesses with a unified mission to Rewild the Canadian Landscape One Forest At A Time. Mike is passionate about restoring disturbed landscapes across Canada, specifically to restore ecological function to non-productive agricultural lands with Conservation groups and Indigenous communities.
An outdoor enthusiast and wildlife advocate, Mike knew early in life that he wanted a job that let him explore nature. As the founder of Project Forest and a Professional Forester, he’s contributed to the reforestation of tens of thousands of hectares across Western Canada during his career. Aside from earning his Bachelor of Science in Forest Business Management, Mike also has a Technical Diploma in Forest Technology from Northern Alberta Institute of Technology (NAIT). His happiest moments are in the field, among the trees, where he gets to make an impactful difference every day where it matters the most, Our Environment!
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Theo Hooker is a systems thinker and nature-based solutions champion based in Washington, DC. He is passionate about cultivating businesses that are both good for people and the planet while laying a roadmap for other businesses to follow. He believes that in order to create a just and sustainable future, we have to imagine a new way of interacting in the world. In 2020, he co-founded Cambium Carbon, a climate tech company that builds local supply chains across the country. Starting with urban wood, Cambium connects naturally fallen trees to primary and secondary processors (e.g. sawmills & wood shops) and then onto end buyers (e.g. furniture manufacturers, architects, designers…etc.) In his spare time, Theo trains for ultra-marathons, practices handstands, and enjoys good books.
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Brice Dorwart is an ISA-certified arborist and utility specialist. He has worked for the last 11 years with Davey Resource Group, on a utility vegetation management contract with a major power company in Pennsylvania. He has volunteered extensively with the PHS TreeTenders program, helping various neighborhood clubs around the city of Philadelphia, especially with their young street-tree pruning efforts. He loves planting trees, but he also has a passion for controlling the invasive exotic tree species in preserved wooded areas near his home outside Philadelphia.
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Heather Andrews is a published author, photographer, and speaker who routinely works with homeowners and businesses to create sustainable native pollinator habitats. She grew up as one of 12 grandchildren in North Carolina, and often took walks in her Granddaddy Andrews acre garden, where she learned about pollinators and increasing yield.
During the growing season, you will find her in her monarch waystation, Cat-a-pillar Haven, video blogging on her new YouTube Channel, Garden Thoughtfully. She encourages gardeners to provide wildlife habitat and fuel for native pollinators and improve vegetable yield via pollinator hedgerows/corridors. She combines information from her career in clinical research to guide her messaging, and routinely creates actionable video content to enable gardeners to create a pollinator paradise in their own backyard.
She is a two-time recipient of the “Garden of Distinction” award by the Pennsylvania Horticultural Society for Her Monarch Waystation, Cat-a-Pillar Haven in 2020, and for a pollinator Garden, she designed for the Historic Craighead House in collaboration with the Penn State Master Gardeners. Her award-winning photographs and articles have been featured in magazines and on Medium.
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David Barmon is owner of Epilogue LLC, a small-scale sawmill business just South of Portland Oregon. He co-owned Fiddlehead LLC, a Portland, Oregon-based landscape construction company for 15 years. David has milled hundreds of thousands of board feet of lumber and installed countless edible landscapes and rain gardens in the Portland area. In a former career, David spent almost a decade as a Japanese-qualified flight attendant for United Airlines.
David has been a powerful advocate for the urban lumber movement over the last decade. He has successfully leveraged private industry, non-profit organizations, and government to push for transformational changes in the urban forestry system. In addition to his hands-on experience procuring, milling, and creating value-added products from urban lumber, David draws from a broad set of skills, including writing, public speaking, lobbying, small business ownership, non-profit management, and policy work. He is currently working on his first book, Wood From the City, the Urban Lumber Handbook.
David has spoken at several conferences including Wood at Work (McGill University 2017 and University of Toronto 2018), the prestigious International Living Future Conference, TEDx Kelowna, and the Mid Atlantic Urban Wood Forum (Virginia Department of Forestry). David was the 2019 keynote speaker at Australia National University’s first-ever urban lumber conference. David was named Sustainable Business Oregon’s Emerging Leader in 2013. His work and ideas have been featured in many publications such as Oregon Public Broadcasting, Green Builder, Sunset, Dwell, and Residential Architect. In 2015 David helped pass legislation through the State of Oregon to fund the world’s first urban lumber tree planting feasibility study. The study, called the Clackamas County Urban Lumber Pilot focused on how to intentionally plant, maintain and harvest urban trees for lumber.
David is fascinated with the physical world and all of the amazing information our modern society is about to forget. He believes our religion, culture, cities, food, clothing, smartphones—basically everything—comes down to understanding plants and rocks.
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Glenn Eck has been in the horticulture and landscape industry since 1985. He was fortunate to receive a foundation of education and training through the Longwood Gardens Professional Horticulture Program, and a student year with England’s Royal Horticultural Society. Since 1997, Glenn has been managing the grounds and urban horticulture at Temple University in Philadelphia. He is a volunteer with the PA Big Trees program, documenting Pennsylvania’s largest trees, and holds the dubious distinction of discovering Pennsylvania’s largest known Ailanthus altissima (Tree of Heaven). When not in the garden, he prefers exploring wild places, sometimes by bicycle.
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Michael Dunn is an innovative Urban Forest Manager and Consulting Arborist with a passion for progressive problem-solving of environmental issues and a vision for a sustainable future in the designed urban environment. He is eager to collaborate with community and borough planners and stakeholders to manage and optimize the urban forest infrastructure as a shared and valuable asset. Michael is able to quantify and incorporate the current and future tree canopy into long-term strategic decision-making. He is an experienced leader posed to drive positive and productive community outreach and communications.
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Michael Joshin Thiele’s pioneering approach to apiculture and honeybee conservation has appeared in national and international magazines, books, and films. He has presented his work at Harvard University and New York University, consulted for the USDA, and in 2006 developed the organization Gaia Bees to advance biodynamic practices in apiculture.
In 2017 he founded Apis Arborea to preserve the life and resiliency of honeybees through Wilding, that is, the restoration of natural nesting habitat, and the use of a holistic ecological and science-based framework in working with bees. He offers workshops and training in the U.S. and internationally.
Michael was born and educated in Germany. He lives with his family, and an infinity of bees, in the oak woodlands of Northern California.
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Dr. Ed Gilman is a professor emeritus from the University of Florida and is a principal at Wood Architecture, Inc.
His 35 years in academia and the green industry have led him to write the Illustrated Guide to Pruning, which is now in its third edition. Ed has a long list of achievements and awards including honorary membership in the American Society of Landscape Architects (ASLA) in 2016, an author’s citation award in 1999, and an educators award in 2003. He has also received a research award in 2007, and an award of merit in 2016 from the International Society of Arboriculture (ISA’s highest award). Ed’s published works over his 35 years in academia include more than 120 scientific peer-reviewed journal articles on roots, tree planting, and tree pruning. In addition to all of his academic achievements, Ed has delivered over 800 presentations to professional groups throughout the world. He now conducts training, writes specifications, and consults for companies on arboriculture-related issues.
https://hort.ifas.ufl.edu/woody/instructional-videos.shtml
https://hort.ifas.ufl.edu/woody/contact-us.shtml
https://www.educatedclimber.com/dr-ed-gilman-teaching-series/
https://tcia.org/TCIA/News/Business/_UF_IFAS_Professor_Ed_Gilman__A_legacy_of_tree_growth.aspx
https://www.amazon.com/Illustrated-Guide-Pruning-Edward-Gilman/dp/111130730X
https://www.urban-forestry.com/assets/documents/gilman.pdf
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Kevin Martin is the Head of Tree Collections at the Royal Botanic Gardens, Kew, having joined in 2012. In his role, he is charged with the curation and management of Kew’s unique and historic collection of trees from around the globe for the purpose of scientific research and conservation within a UNESCO World Heritage Site landscape.
Kevin has a foundation degree in arboriculture and is a TRAQ-certified tree inspector. He also sits on several boards including the Arboreta Advisory Committee for Westonbirt and Bedgebury. Kevin is also the vice chair of the arboricultural subgroup for the apprenticeship trailblazer. He is also a member of the UK Botanic Garden and Arboreta Collections Consortium (UKBGACC).
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Dr. Clint Springer is an associate professor of biology at Saint Joseph's University in Philadelphia, Pennsylvania. Clint is also the director of the Institute for Environmental Stewardship and the first faculty director of the Barnes Arboretum at Saint Joseph's University (formerly the Arboretum of the Barnes Foundation). Clint's research has examined the response of plant physiology and development to human-induced climate change. His more recent interests include the intersection of climate change and ornamental horticulture and arboriculture. Clint was born and raised on the Allegheny plateau in West Virginia where he attended West Virginia University for both his undergraduate and graduate degrees. He holds a B.A. in biology and a Ph.D. in environmental and evolutionary plant biology from WVU.
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Sophie Nitoslawski is passionate about finding ways to better integrate trees and green infrastructure into the fabric of our cities. Her research centers on the intersection of smart communities and urban forest management, and she works with both private- and public-sector partners to pilot digital-based monitoring and management systems for urban ecosystems.
In addition to her Ph.D. work, Sophie is involved in teaching various urban forestry and sustainability courses at University of British Columbia (UBC) and is currently a member of the International Society of Arboriculture (ISA) Science and Research Committee.
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Neil Hendrickson worked for Bartlett Tree Research Labs where he served as their Northeast Technical Specialist for over twenty years before his retirement in 2019. Neil is a New Jersey Licensed Tree Expert and maintains his tree risk assessment qualifications. He now serves as chair of the Readington Township, New Jersey, Environmental Commission, and Tree Advisory Committee, and is a member of the Readington Open Space Advisory Board, and the Hunterdon County Shade Tree Commission. Neil is also on the Executive Board of the New Jersey Shade Tree Federation. He received his Bachelor of Science in Forestry from Cook College/Rutgers University, his Master of Science in Forest Science from the University of New Hampshire, and his Ph.D. in Silviculture and Forest Ecology from the Yale School of Forestry and Environmental Studies.
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Cliff Drouet is a Forester with the Office of Surface Mining Reclamation and Enforcement(OSMRE) which is a federal agency under the Department of the Interior. Cliff is working with the Appalachian Regional Reforestation Initiative(ARRI). The program restores old surface mine sites throughout Appalachia by planting native seedlings and establishing wildlife habitats. This reforestation program was started in 2004 by OSMRE and it has evolved into a highly successful program with good seedling survivability and growth. Having native trees growing on old mine sites greatly improves air, water, and soil quality while providing wildlife habitat and recreation benefits on the site. The ARRI program partners with private landowners, federal, and state agencies, non-profits, academia, and corporations to restore old mine sites back to native forests across Appalachia.
Cliff graduated from Louisiana Tech University in 1980 with a B.S. in Forest Management and he is a member of the Society of American Foresters. His professional background includes working as a Procurement Forester for 11 years in the industrial sector then he worked as a Consulting Forester for 25 years. In 2016 he began working as a Federal Forester in Kentucky.
Cliff is a proud military veteran who served for 36 years and completed four combat tours. He is a retired Army Lieutenant Colonel with experience as an Engineer and Military Intelligence Officer.
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Tom Kimmerer is a scientist, author, and photographer. He is a consulting forest scientist, working with landowners and with other scientists and natural resource management professionals to ensure a future for the woodland pastures of Kentucky and Tennessee. He consults on sustainability issues related to forest management and wood utilization, including carbon sequestration in forests and wood products.
Tom is the author of Venerable Trees – History, Biology and Conservation, and writes for American Forests, Planet Experts, and other publications.
He teaches field courses on forestry, woodland pastures, and sustainability and is a conservation photographer specializing in tree and forest photography.
Tom has a B.S. in Forest Biology (Botany) from SUNY ESF and a Ph.D. in both forestry and botany, with a specialization in tree physiology and biochemistry from the University of Wisconsin – Madison. He has done research and has taught tree physiology, forest biology, and urban forestry in the United States, Indonesia, and Malaysia, and was a faculty member at the University of Kentucky. Tom was also a Senior Fulbright Scholar in Malaysia and an advisor and consultant on environmental and forestry issues for the governments of Malaysia and Indonesia, the American-Malaysian Chamber of Commerce, the Electric Power Research Institute, and LG&E-Kentucky Utilities.
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As the founder, principal, and guiding influence of Viridian Landscape Studio, Tavis Dockwiller leads a team that works every day to make sure they leave more than they take – and have fun while they're doing it.Her belief in the essential and healing power of landscapes drives all of the firm's design projects and ecological master plans. A natural storyteller and gifted communicator, Tavis knows how to build consensus between diverse stakeholders and counsels clients on balancing long-term ecological resilience with memorable placemaking. Her work and ideas have helped reshape cities, transform college campuses, and improve lives for communities all over the country.
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Eliza Greenman is a tree crops specialist, horticultural historian, and agroforestry practitioner living in Northern Virginia. Her passion is in uncovering our Nation's horticultural tree crops history in order to identify, find, and save a diversity of endangered tree species and cultivars from disappearing. She believes that in giving these trees a human-scale purpose, they have a much better chance of being preserved, understood, and further improved for today's changing times. In 2018, Eliza created HogTree, a farm business that works to offset livestock feed costs through diversified orchards and tree cropping systems. Today she raises pigs for charcuterie in a young, diversified orchard containing pears, apples, persimmons, chestnuts, oaks, and mulberries. Her small-batch charcuterie ships nationwide from her Hogtree website, www.hogtree.com.
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Ian Hanou is a trees and technology-loving entrepreneur with 20 years of private sector experience. He earned a B.S. in Forest Management and GIS from Colorado State University and founded PlanIT Geo in 2012. Ian is a thought leader in software design and geospatial analysis for urban forestry, green infrastructure, parks, and ecosystem services. He has led hundreds of projects with clients in government, nonprofits, and the private sector. At PlanIT Geo, Ian directs overall operations, management, strategic partnerships, and vision. He plays a hands-on role in the roadmap for the TreePlotter suite of software and related technology innovation. In 2011, the Society of Municipal Arborists honored Ian with an award for innovation in tree planting prioritization using GIS.
He lives in Colorado with his wife and two children, where he has summited all 54 mountains over 14,000 feet.
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Douglas Meney is the Director of Horticulture with the American Battle Monuments Commission (ABMC), a position he has held since 2014. Mr. Meney serves as the principal Horticultural advisor to the Deputy Secretary for Overseas Operations and to the Superintendents of 26 permanent American military cemeteries and 32 federal memorials, monuments, and markers, located within 17 foreign countries.
These military cemeteries and memorials, most of which commemorate the service and sacrifice of Americans who served in World War I and World War II, are among the most beautiful and meticulously maintained shrines in the world.
Mr. Meney, who was born and raised in Scotland is a trained and qualified horticulturalist who has worked within the Horticultural industry for 40 years, 33 of which have been dedicated to military cemetery maintenance in the Netherlands, Belgium, the United Kingdom, and France. He holds a Foundation Degree in Horticulture from West of Scotland Agricultural College and a BA (Hons) in Leadership and Management from Northumbria University, Newcastle upon Tyne.
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Amanda Benner is a Principal Program Manager for Vegetation Management at PECO, an Exelon Company, and lives in Philadelphia. Prior to joining the electric utility, she held non-profit leadership positions at the Pennsylvania Horticultural Society, and was Executive Director at a community organization, UC Green. Her career includes positions in operations and project management at marketing and communications firms. Amanda has an MBA from the University of Maryland, is an ISA-certified arborist, and holds the Tree Risk Assessment Qualification.
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Dan Herms is Vice President of Research and Development for The Davey Tree Expert Company. Prior to joining Davey, Herms served on the faculty in the Department of Entomology at The Ohio State University from 1997 to 2017, serving as Department Chair from 2012 to 2016. His research and outreach programs focus on the ecology and management of trees in forests, urban forests, and ornamental landscapes, including interactions with insects, soils, and climate.
He received his B.S. in Landscape Horticulture from Ohio State University in 1982, his M.S. in Horticulture and Entomology from Ohio State University in 1984, and his Ph.D. in 1991 from Michigan State University in Entomology with a specialization in Ecology and Evolutionary Biology. Major recognition for this work includes the L.C. Chadwick Award for Arboriculture Research and the Richard W. Harris Author’s Citation Award from the International Society of Arboriculture, and election as a Fellow of the American Association for the Advancement of Science and the Entomological Society of America.
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Anthony (Tony) Aiello is Associate Director of Conservation, Plant Breeding, and Collections at Longwood Gardens, where he participates in tree conservation, plant exploration and evaluation, and collections development. Previously he served for 22 years as the Gayle E. Maloney Director of Horticulture and Curator at the Morris Arboretum of the University of Pennsylvania, where he managed the Morris Arboretum’s historic gardens and living collections. These positions have allowed him to travel throughout the U.S., Europe, China, and Japan to find novel plants suitable for growing in the Delaware Valley. He has a Bachelor of Science in Biology with a concentration in Botany from Cornell University and a Master of Science in Horticulture from Purdue University. For many years Tony chaired the North America-China Plant Exploration Consortium (NACPEC) and participated in the American Public Gardens Association taxonomy and plant collections committees.
Tony’s interests include temperate trees and shrubs – in particular oaks, maples, hollies, witch-hazels, and flowering cherries, as well as economic botany and the history of horticulture. He has written extensively about his travels, as well as his historic and plant interests.
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Zhaohua (Cindy) Cheng is a Ph.D. candidate in urban forestry at the University of British Columbia (UBC). She has over five years of experience in community and youth engagement, climate change adaptation, student advising and engagement, and project management. Her Ph.D. research focuses on exploring urban forest-based solutions for climate resilience and urban livability.
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Edward (Ned) Sibley Barnardwas for 17 years senior staff editor and managing editor of Reader’s Digest General Books, where he oversaw the production of several dozen books that sold over one million copies each. From 1963 to 1967 he was project editor of a 15-volume ecology series, Our Living World of Nature, published jointly by McGraw-Hill and World Book Encyclopedia. He edited the volume on Mars in DK’s Eyewitness series and four volumes in Scholastic’s National Audubon First Field Guide series. Among his writing credits are articles for National Wildlife, International Wildlife, and Audubon, 5 children’s books on animals for Reader’s Digest, and New York City Trees for Columbia University Press. Recently he co-produced with Ken Chaya Central Park Entire, the most detailed map of Central Park available. He is keenly interested in old-growth trees and has volunteered as a tree ring technician at the Lamont-Doherty Earth Observatory’s Tree Ring Research Laboratory. One of his recent books is Central Park Trees and Landscapes, a Guide to New York City's Masterpiece published by Columbia University Press in 2016. He also co-authored with Paul Meyer and Catriona Briger a field guide titled Philadelphia Trees published by Columbia University Press in 2017. Currently, he is producing an updated edition of Philadelphia Trees for the University of Pennsylvania Press for publication in 2023. He is also co-writing and producing a book titled Philadelphia Nature, A Field Guide to Wild Places and Wildlife in the City & the Surrounding Delaware Valley with Anne Bekker for publication by Temple University Press in 2024.
Ned moved from Manhattan to Chestnut Hill in 2010 with his wife Pauline Gray.
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Erica Smith Fichman has spent her career connecting people with plants. As the Community Forestry Manager at Philadelphia Parks & Recreation, she is the project lead for the Philly Tree Plan. Erica also supervises the amazing TreePhilly team which provides Philadelphia residents with the resources they need to plant and care for trees in their own backyard. She is an ISA-certified arborist and the recipient of the Arbor Day Foundation's 2018 Trailblazer Award. Erica received a B.S. in biology from Haverford College and an M.S. in environmental horticulture from the University of California, Davis.
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Joe Hansen is an ISA Certified Arborist Municipal Specialist, Tree Risk Assessment Qualified (TRAQ), and holds numerous certifications through the Tree Care Industry Association including Certified Tree Care Safety Professional (CTSP), and is an Approved Instructor for the TCIA’s Tree Care Academy. In his role as Urban Forester for the City of Park Ridge, Illinois, Joe is responsible for maintaining the urban forest through the use of the City’s Urban Forest Management Plan, conducts parkway tree inspections, and building plan reviews, assists with managing contracts, and enforces the Tree Preservation Ordinance. In addition, he serves as Chair of the Public Works Safety Committee.
Outside of his duties with Park Ridge, Joe was recently elected the Municipal Director for the Illinois Arborist Association and he is also a Task Specialist for the Urban Forest Strike Team in Illinois. The strike team conducts rapid tree assessments after storms to assist communities in need in hopes to preserve trees while assessing their risk. He also produces a podcast called The Municipal Arborist where he and guests discuss urban forestry and industry-related topics which also provides ISA CEUs to listeners. He likes to share his experiences through training and public speaking engagements.
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Steve Blaes holds degrees in sustainable horticulture and environmental science and has over 20 years of experience in the green industry. He has earned multiple green industry credentials, including the Chesapeake Bay Landscape Professional certification, the Landscape Contractors Association CLT in Ornamental Maintenance, and is an International Society of Arboriculture (ISA) certified arborist with their Tree Risk Assessment Qualification (TRAQ) among others. Steve has worked on a plethora of projects ranging from residential to institutional campuses in both rural and urban communities across the country. His scientific area of inquiry primarily focuses on supporting professional landscape best management practices that positively impact riparian ecologies endemic to the piedmont and coastal plain regions. He is currently working as a design and sales consultant in Maryland's Baltimore Metro area while supporting his passion projects in the Chesapeake Bay Bioregion.
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Jake Handley was born in San Luis Obispo, California, and grew up in Eustis Florida where he received a bachelor’s degree in art history from the University of Central Florida. After graduating from college he worked in the zip line industry for 5 years as a guide, trainer, and course builder. He started his transition into the tree world in 2017 working for Asheville Arborists where he is currently employed. He became a certified arborist in 2019 and has written “The Times They Are a-Changin” for the Arborist magazine an article on climate change. Jake currently resides in Black Mountain, North Carolina.
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Dana Dentice is a Trees Program Manager and an ISA-certified arborist at PHS. She leads the Tree Tenders program (with now nearly 6000 graduates) to empower citizens to protect and expand tree canopy in communities across the Philadelphia region. Dana collaborates with organizations and volunteers on planting 1500-2000 trees annually and engages them in follow-up stewardship programs, such as pruning clubs and the PHS Tree Checkers tree monitoring program. She enjoys sharing her expertise in arboriculture and community organizing at Tree Tenders trainings. Dana previously served as a forestry assistant for the cities of Fitchburg and Madison, Wisconsin where she conducted public tree inventories and led open space planning. She holds a B.S. in Natural Resources and an M.S. in Urban & Regional Planning from the University of Wisconsin-Madison.
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Jeffrey Ling is an International Society of Arboriculture (ISA) certified arborist, registered consulting arborist, and senior consulting arborist in the state of Indiana. He is Secretary-Treasurer of the American Society of Consulting Arborists and currently serves as its co-liaison to the Council of Tree Landscape Appraisers. In Jeffrey’s hometown of New Haven, Indiana he serves as a member of the Tree Commission.
For 31 years, Jeff co-owned TreeMasters, Inc. a comprehensive arbor-care company. He specialized in Plant Health Care and Woody Plant Pathology. Jeff also served as a Testifying Expert in courts throughout the Great Lakes and the East Coast.
Jeff’s current consulting firm, ARBORWISE, LTD., was founded in 1994. It focuses on horticulture issues, urban forestry concerns, and tree preservation projects.
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Jan Johnsen is a principal of the award-winning Johnsen Landscapes & Pools in New York, and an admired garden designer and author. She was the 2019 recipient of the prestigious ‘Award of Distinction' from the Association of Professional Landscape Designers. Her firm’s website is www.johnsenlandscapes.com
Trained in landscape architecture and professional horticulture, Jan has worked in Japan, Hawaii, and Kenya, among other places. She is an inspiring and popular speaker and loves to show how you can “co-create with nature” in your backyard.
She taught at Columbia University for many years and still teaches at the New York Botanical Garden where she was named “Instructor of the Year”. Jan wrote ‘All About Trees’ and has followed that up with several other books. Her 2021 book, Floratopia – 110 Flower Garden Ideas for Your Yard, Patio or Balcony, (Countryman Press, an imprint of W.W. Norton) joins Gardentopia, Heaven is a Garden and The Spirit of Stone.
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Dr. David Bengston is an Environmental Futurist and Social Scientist with the Strategic Foresight Group of the Northern Research Station, USDA Forest Service, and is located in St. Paul, Minnesota. He is also an adjunct faculty member at the University of Minnesota where he teaches a seminar on environmental futures. Dr. Bengston has published more than 160 research publications, including papers in the Journal of Futures Research, World Futures Review, Futures, and The Futurist. He was the Chair of the North American Forest Commission’s Foresight Working Group and is a member of the World Futures Studies Federation and the Association of Professional Futurists.
Dr. Bengston has worked as a consultant to the Food and Agriculture Organization of the United Nations, the United Nations Development Programme, and the International Union of Forestry Research Organization’s (IUFRO) Special Programme for Developing Countries. He was the Coordinator of the IUFRO Ecological Economics in Forestry Working Group and was an OECD (Organization for Economic Cooperation & Development) Research Fellow at Seoul National University in South Korea in 2004. In the summer of 2022, he will be a visiting Fulbright scholar at the University of Eastern Finland.
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Nate Shampine, CERP, is Mt. Cuba Center’s Natural Lands Manager responsible for implementing land conservation practices and developing healthy and functional ecosystems. He is a graduate of SUNY College of Environmental Science and Forestry and is a Certified Ecological Restoration Practitioner through the Society for Ecological Restoration. He is an adjunct professor at Temple University where he teaches Landscape Restoration to undergraduate and graduate students. He is also a certified wildland firefighter and recently traveled to Arizona and California to assist with wildfire efforts.
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Brian “BK” Koehler has been the director of the Park Maintenance Institute since early 2020. BK holds degrees in Business Administration (BS), Parks and Recreation Administration (BS), and Experiential Education (MS). He is an experienced facilitator and event professional with an extensive background in teambuilding, ropes course / climbing tower construction, and outdoor adventure leadership.
Before joining the Park Maintenance Institute, BK was based in Hong Kong through 2015 as an experiential educator, producer, and entrepreneur. Upon his stateside return, BK stepped into operations and facility management of the Student Union and Recreation Center at Central Washington University.
BK is a native Pennsylvanian, but self-proclaimed “global citizen.” He is motivated by a thirst for experience, and driven by a desire to engage leaders that impact society. He believes in the power of positive energy, an innovative mindset, and servant leadership. In his free time, BK enjoys gardening and playing disc golf.
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Linda Langelo is a Colorado State University Extension, Horticulture Agent. The five counties under her care are in Northeast Colorado. In 2020, a 100-year event called a derecho devastated the small towns of Akron and Haxtun. To help in the recovery of these towns, she sought to partner with the Colorado Forest Service Regional Education Coordinator, Donna Davis, and was able to secure funding from Colorado Tree Coalition (CTC) to reforest these communities.
She received her Master’s Degree in Education Administration from Salisbury State University in Salisbury, Maryland. Graduated from the Horticulture Program at Longwood Gardens after graduating from Cabrini College with a degree in English Communications, with a minor in Biology and Botany. She was a member of the Tri-Beta Honor Society. In July 2021, she was the recipient of the Lois Woodward Paul Memorial Award.
During her 40 years in horticulture, she has both implemented arboretums and overseen them. As Assistant Director of Horticulture at Salisbury State University, she helped implement a campus-wide arboretum still going strong today. She went on to be Director at Adkins Arboretum early in its implementation increasing its exposure in the local and surrounding communities and as a member of the American Public Garden Association.
Currently, she writes a monthly column called the Relentless Gardener and has a Facebook Page titled Garden the Plains, and has a book awaiting publisher’s approval called “Plants Are Speaking. Are You Listening?”
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Melissa Custic manages the Chicago Region Trees Initiative (CRTI). The CRTI is a collaboration of regional partners working together to improve the health, diversity, and equity of trees in the seven-county Chicago Region. Melissa works closely with colleagues of partner institutions to increase canopy cover, reduce the presence of invasive species, and works to increase the preservation of oak ecosystems in the Chicago Region. She has developed several resources and training programs aimed at improving tree selection, planting, and care, as well as targeting invasive woody removal and replacement. Melissa’s professional interests include urban forestry, urban ecology, environmental justice, tree care, climate change, and soil ecology. Melissa is also an ISA-certified arborist.
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Amber Grant is a Ph.D. Candidate (ABD) in the Environmental Applied Science and Management program at X* University (formerly known as Ryerson University). Her doctoral research focuses on examining environmental justice in urban forest management and decision-making in the United States. Most recently, Amber has been working in Philadelphia, Pennsylvania to investigate how environmental justice is being pursued and implemented in community tree-planting programs and practice. Amber has also worked with Dr. Andrew Millward and his Urban Forest Research and Ecological Disturbance Group for the last seven years conducting interdisciplinary research regarding urban forest function, ecological change, and human interactions with urban nature.
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William Fuchs is the Head Gardener at Andalusia Historic House, Gardens, and Arboretum. William has worked in several positions at Andalusia over the last 22 years including 14 years as the Head Gardener. William came to Andalusia as an intern in 1998 while finishing his Bachelor of Science degree in Horticulture at Temple University, Ambler campus. Before attending Temple, William received his Associate Applied Science degree in Ornamental Horticulture from Cumberland Community College. William’s interest in horticulture and gardening has been lifelong, working in various positions in the industry for over 30 years including the 7 years William managed his own design, install, and maintenance landscape company. William grew up on a small farm where a variety of crops were raised for farmer’s market stands as a side business. William is glad to be a part of this incredible community that helps promote a better place to live by planting beautiful trees and gardens.
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Mohamed M. Hassona is the Head Horticulturist at the Qur'anic Botanic Garden, the Qatar Foundation in Ar-Rayyan, Qatar.
Hassona joined the Foundation in late 2010 to provide comprehensive horticultural support, direction, and expertise to initiate activities related to the development of the Qur'anic Botanic Garden’s initiatives on agriculture, horticulture, nursery production, and tree management. With over 17-years of dynamic hands-on experience in horticulture, Hassona is responsible for all the plants in both the open spaces and greenhouses at the garden. He also manages all propagation while overseeing the curatorial information for all plants and trees.
Hassona also manages all agricultural staff including coordinating work schedules and staff evaluations.
Hassona has a master’s degree in science in Sustainable Agriculture & the Environment and a Bachelor of Science in Agriculture Sciences & Education from his university in Egypt. Hassona is an alum of the Advanced International Training Programme on Plant Breeding & Seed Production and Plant Genetic Resources from the Swedish University of Agricultural Sciences.
He also contributes to the ongoing education-based conservation programs targeting the community, for food security, reforestation, and plant propagation.
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Josh Behounek is the Business Development Manager with Davey Resource Group. Josh started his career as an inventory arborist working on many large-scale street tree inventories across the country. He then transferred to a Davey Residential and Commercial office in northwest Chicago, where he spent four years performing plant health care and climbing trees. In 2006, Josh transferred back to DRG, where he now leads business development activities across the country for the Environmental Consulting team. He is most passionate about helping clients proactively and sustainably manage their environmental ecosystems.
As a presenter, he has done over 100 presentations at international, national, and regional conferences and workshops. Josh is an ISA Certified Arborist ® Municipal Specialist, and is Tree Risk Assessment Qualified (TRAQ), Josh graduated with a bachelor’s degree in forestry resource management from Southern Illinois University at Carbondale. As a frequent business and pleasure traveler Josh has hugged over a dozen national champion trees and is always on the lookout for another one.
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Katie Dubow is president at Garden Media Group, a women-owned and run public relations firm specializing in the home and garden industry. Author of the annual Garden Trends Report, Dubow travels the world scouting and presenting garden trends to audiences from Italy to Chicago.
Dubow is a guest host on QVC for Cottage Farms, judge at the Philadelphia Flower Show, the inaugural recipient of the Emergent Communicator Award from the Association of Garden Writers, vice-chair of the Pennsylvania Landscape and Nursery Association, and an awarded member of the 2018 Forty Under 40 from Greenhouse Product News.
Previously, she worked at CBS Studios in New York City and was a public relations & marketing manager at Monet Jewelry. Katie received a degree in communications from Northeastern University where she was also a Division I rower on the crew team.
Dubow lives and gardens in West Chester, PA with her husband, two daughters, one dog, and six chickens. Find her in the garden with her children, practicing yoga or dancing to Zumba. Her goal is to convince people that brown thumbs can, in fact, be turned green.
Follow along @KatieGMG and on Facebook at KatieGardenGirl
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Jason Lubar has been employed at Morris Arboretum of the University of Pennsylvania as the Associate Director of Urban Forestry for over twenty years. His career has focused on educating a wide audience about trees and natural resources. He teaches professional-level arboricultural courses, presents at international conferences, and supports Morris Arboretum’s educational mission by providing a wide-range of tree-related consulting services to a diversity of clients including design firms, arborists, townships and municipalities, schools, and corporations.
We have invited Jason back today in light of the recent tornados that have ravaged our Mid-Atlantic Region. This podcast is dedicated to the aftercare of trees from tornado and derecho damage.
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Tom Knezick is the General Manager of Pinelands Nursery & Supply. He became interested in the agricultural and the nursery industry as a child when he planted his first pussy willow at age 2. As 2nd generation nurseryman, his parents Don & Suzanne Knezick started the nursery in 1984. Tom’s primary focus is bringing a business-minded approach to growing, selling, and marketing native plants.
Pinelands Nursery is proud to supply local ecotype trees, shrubs, grasses, forbs & seeds to the Mid-Atlantic and the Northeast grown from wild-collected seed. Most of the plants they grow are planted in ecological restoration projects from Virginia to Massachusetts, creating landscapes that attract pollinators, curb climate change, prevent flooding, and create wildlife habitat.
Tom is a member of the New Jersey Nursery & Landscape Association Board of Directors, Atlantic Seed Association Executive Committee, and is Secretary of NJ Farm Bureau Young Farmers & Agriculture Professionals. He also operates an e-commerce garden center with his wife Melissa, and recently had his first child. Tom also hosts the Native Plants Healthy Planet Podcast.
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Megan Barstow is the Conservation Officer at Botanic Gardens Conservation International. She began her career as a Global Tree Search Intern, compiling species lists of trees and their country-level distributions towards the publication of BGCI's GlobalTreeSearch Database before moving into a role as a Conservation Officer within BGCI. This new role led to her producing International Union for Conservation of Nature (IUCN) Red List Assessments for a variety of tree species including, Global Timber Species and assessments for species protected under CITES, which is a multilateral treaty to protect endangered plants and animals. Also in her role at BGCI Megan works closely with partners in the Philippines, Papua New Guinea, and Malaysia to complete the Global Tree Assessment. She is also an IUCN Red List Trainer. Her special interest is to make assessments for the plant family Dipterocarpaceae which contains high valued trees for timber in Asia. Her work contributed to the State of the World's Trees report, for which she jointly led the communications of the report. Megan studied at the University of Bath in biology and her placement year was spent at Kew's Millennium Seed Bank.
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Neil Pederson is a Senior Ecologist at the Harvard Forest who studies the dynamics and long-term development of forests from individual trees to trees across regions and subcontinents. He is especially interested in the response of trees as they interact with climate and as they interact amongst themselves. Neil conducts basic and applied research to help develop ecologically-based, long-term forest management. He digs natural history, charismatic megaflora, and old-growth forests. Neil is also very curious about the growth, longevity, and ecology of broadleaf trees and forests.
Neil earned an associate degree in math while playing lacrosse at SUNY-Morrisville, received his bachelor’s degree from SUNY-College of Environmental Science & Forestry, and received a Master of Science from Auburn University studying an old bottomland hardwood forest in South Carolina. After a stint as a tree-ring technician assisting on climate change research in Mongolia and Russia at the Tree-Ring Laboratory of Lamont-Doherty Earth Observatory, he earned a Ph.D. studying forest ecology and climate change along the eastern coast of the United States at Columbia University. Before becoming a senior ecologist in the Fall of 2014 at the Harvard Forest, Neil was an assistant professor in biology at Eastern Kentucky University and a research professor at Lamont Doherty Earth Observatory.
He currently has grants with the US Forest Service and National Science Foundation to study the impacts of extreme climate on the lives of trees in the Northeastern US and how climate might have shaped the old-growth forests we love today.
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Jennifer Santoro is a Visiting Assistant Professor in the Department of Geography and the Environment (GEV) at Villanova University, where she teaches courses in Geographic Information Systems (GIS) and Environmental Science. Jen is originally from northern New Jersey where she grew up learning about trees from her dad. She studied Environmental Science at Hamilton College and received both a Master of Forestry and Master of Environmental Management degrees from Duke University’s Nicholas School of the Environment. Currently, she is finishing her Ph.D. in Natural Resources (Applied Forest Ecology) at the University of Vermont while she teaches at Villanova. Jen’s research focuses on spatial modeling of forest disturbances in the northeastern United States; she’s particularly interested in the long-term impacts of climate change and invasive pests on forest diversity. Jen strives to foster a love of maps and nature in her students, and she hopes her research will promote a greater understanding of the importance of trees and managing forests to be resilient in the face of climate change.
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Allison Brown holds a Ph.D. in Botany from the University of California, Davis where her research focused on the significance of mycorrhizal fungi in tidal salt marshes. She has taught courses in Plant Pathology at Temple University – Ambler Campus and Longwood Gardens in Kennett Square, Pennsylvania and she is currently teaching Biology at Delaware Valley University. Fungi often take center stage in Allison’s lectures and have been the highlight for many guest presentations including those for Master Gardener programs, the New Jersey Mycological Association, and other mushroom clubs, as well as the American Chemical Society. Most recently Allison gave a presentation entitled “Villains in the Garden” for the ONE Symposium at Tyler Arboretum, where she introduced her audience to the parasitic fungi commonly associated with trees. Allison also leads mushroom hikes and enjoys exploring the culinary delights of local fungi.
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Susan Downing Day is a Professor of Urban Forestry in the Department of Forest Resources Management at the University of British Columbia in Vancouver, Canada, and Program Director for the Bachelor of Urban Forestry. Susan’s research focuses on managing urban soils to enhance tree growth and longevity in the context of environmental challenges such as stormwater mitigation and land development impacts on soil-mediated ecosystem services. She helped shape the soils metrics for the Sustainable Sites Initiative (SITES®) international crediting system for sustainable design projects and developed Soil Profile Rebuilding, a rehabilitation technique to restore damaged urban soils in situ and enhance urban soil carbon storage. Her research in the water relations of tree-engineered soil systems and in partnership with the Chesapeake Bay Trust has informed stormwater policy in the Chesapeake Bay region of the United States. Susan also led Urban Forestry 2020, a research-based investigation into urban forestry career paths and education. Susan has published more than 130 articles and book chapters on urban forests and urban soils and is the 2017 recipient of the L.C. Chadwick Award for Arboricultural Research. Susan holds a B.A. from Yale University, an M.S. from Cornell University, and a Ph.D. from Virginia Tech.
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Ari Miller is the director of design at Hinge Collective, a public interest design firm that puts community engagement and public participation at the forefront of their practice. As both a landscape architect and arborist, Ari has always advocated for the integration and restoration of natural systems in urban design. Over the course of his 17-year career, Ari has worked as an arborist at Morris Arboretum, as a green roof design specialist at Roofmeadow, and has also led large-scale civic design projects at OLIN Partners. At Hinge, he uses this experience to help communities find design solutions that best support human and ecological health in their own neighborhoods through the enhancement of public space and community-led planning. Ari has also been adjunct faculty at the Weitzman School of Design at the University of Pennsylvania and Jefferson University.
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Bill Logan (William Bryant Logan) has spent the last five decades living with trees, as a writer, arborist, and teacher, first in coastal California and the Sierra Nevada, then for the last thirty years in the regenerating forests of New York. Logan is founder and president of the Brooklyn-based tree company Urban Arborists. His firm trains and cares for the pollards and aerial hedges in front of the Metropolitan Museum of Art and has planned, planted, and currently cares for numerous landscapes and gardens at historic properties and urban parks in the Tri-State area. Logan lectures widely, from the Arnold Arboretum in Cambridge to the Huntington Library in Los Angeles and internationally, about the relationship between people and trees. He has won the True Professional of Arboriculture award from the International Society of Arboriculture and the Senior Scholar award from New York State Arborists.
His most recent book, Sprout Lands: Tending the Endless Gift of Trees, has been awarded the 2021 John Burroughs Medal for distinguished nature writing. His essay “The Things Trees Know” was excerpted from Sprout Lands before the book’s publication and published in Orion. It won the 2020 John Burroughs Nature Essay Award. Logan’s earlier books are Dirt: The Ecstatic Skin of the Earth, Oak: The Frame of Civilization, and Air: The Restless Shaper of the World. Dirt inspired an award-winning documentary that was shown at the Sundance Film Festival. Oak was featured in a story on CBS Sunday Morning. Logan has written for the New York Times, Orion, Emergence, Natural History, House Beautiful, House & Garden, and many other publications, winning numerous Quill and Trowel Awards from the Garden Writers of America. He is on the faculty at the New York Botanical Garden and has taught poetry in the New York City schools and nature writing at Sarah Lawrence College.
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Dr. Tony Kendle is a horticulturist, educator, and researcher. He is the co-author of Urban Nature Conservation: Landscape Management in the Urban Countryside and the new book A Wonder In the Garden. Both books review the importance of urban and garden biodiversity.
After working for a local government parks department, Tony studied horticulture at the University of Bath.
This lead to further study and research in the University of Liverpool’s Department of Botany and Ecology. Tony was awarded a Ph.D. on the reclamation of mine spoil and the creation of new woodlands on destroyed land. This was followed by several years working as an ecological consultant, which gave him experience in the restoration of many degraded sites, from coal mines to metal mines, deserts, and even the island of St Helena in the mid-Atlantic.
During this same time period, Tony also worked with Peter Thoday, horticultural teacher, and presenter of the Victorian Kitchen Garden on the BBC. Through joint consultancy, they produced management plans and tree surveys for heritage sites and healthcare properties.
Tony then moved to the University of Reading where for ten years he taught Horticulture and Landscape Management in the degree and postgraduate level programs. His additional experience includes being a visiting teacher at the Royal Agricultural College and the Kew School of Horticulture.
Tony’s former students have progressed to roles in many countries as greenspace managers, educators, and directors of organizations working on city greening and community health.
His combined experiences led Tony to a role as a member of the founding team for the globally famous Eden Project in Cornwall – a site recognized for “reconnecting humankind with the natural world.”
The Eden Project is a botanical garden that was established as part of the United Kingdom’s Millennium initiative of national inspirational projects. It was developed by the team that had earlier restored the Lost Gardens of Heligan. Rather than being a conservatory of rare plants, Eden has an educational charitable mission. The living collections demonstrate our daily dependence on plants and the places where they are grown for us. The living collections are not rarities but staples, even so, they are plants that few people ever get to see in person.
Tony now works for Eden’s new company, the Eden Project International which works on developments throughout the United Kingdom and around the world.
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Pandora Young is a Senior Horticulturist working in Longwood Garden's Outdoor Landscapes since 2005. The areas under her care are Peirce’s Park, a historic arboretum dating back to 1798, and Peirce’s Woods, a 7-acre art-form garden featuring plants native to the eastern United States. She is also an instructor for Longwood’s continuing education program, teaching courses on native and edible plants. In her home garden, the rules are: it has to be native or edible, ideally both (with the exception of Lily of the valley). She received a B.A. in Japanese studies, with a minor in Biology from Earlham College in Indiana.
Public horticulture combines her passion for art, science, the great outdoors, and connecting with people from all walks of life.
Our second guest is Scott Wade the Curator of the Peirce Historic Tree Collection at Longwood Gardens, in Kennett Square, Pennsylvania. Scott is a certified arborist and has work in commercial, private, and public horticulture his entire career. He is a graduate of Penn State University with a degree in Liberal arts. Scott is the past state coordinator of the Champion Tree Program of Pennsylvania, documenting the largest of each species of tree in the state from 2006-2019. He started at Longwood Gardens in 2009 performing tree assessments part-time and has been there ever since.
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Sara Fern Fitzsimmons has worked with The American Chestnut Foundation (TACF) at Penn State University (PSU) since 2003, assisting chestnut growers and researchers throughout the Appalachian Mountains. Born and raised in southern West Virginia (Hinton), Sara studied Biology at Drew University in Madison, NJ. She then received a master’s degree in forest ecology and resource management from Duke University’s Nicholas School. After a short stint as an editorial assistant at All About Beer Magazine, Sara returned to the forestry field, where she has been ever since. Sara hopes her research and professional work will facilitate long-term conservation and restoration of native tree species at risk from exotic pests and diseases.
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John Holback’s environmental experience started as a child helping his dad cut invasive vines from the trees in the woods around their home. He learned a broad array of conservation efforts as a young adult in AmeriCorps and continued to build his skills while volunteering and working as a field coordinator with the Friends of the Wissahickon in the Wissahickon Park in Philadelphia, Pennsylvania. John now lives in the San Francisco Bay Area of California and continues to apply his knowledge in his work in the Santa Cruz Mountains as an open space technician for Midpeninsula Regional Open Space District in Los Altos, California. John is also a professional musician and a graduate from the Berklee College of Music in Boston, Massachusetts.
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Corey Bassett is a Ph.D. student at the University of British Columbia in Vancouver, British Columbia, Canada where she is researching urban forest management and ecosystem services. She has worked and lived across the United States, where she has managed statewide urban and community forestry programs and performed arboricultural consulting and municipal tree care. Beyond her current research area, she is very active around issues such as establishing career and mentorship pipelines for early career professionals, setting standards for tree care for wildlife, and connecting urban forestry with related disciplines.
Corey currently serves as the first Student Representative to the International Society of Arboriculture (ISA) Board of Directors, Public Outreach Director for the Pacific Northwest Chapter of the ISA’s Board of Directors, core member and co-author for the Tree Care for Wildlife program of the Western Chapter ISA, and co-author for the upcoming edition of the ISA Certified Arborist Study Guide. Corey is an ISA Certified Arborist and holds the ISA Tree Risk Assessment Qualification. She completed a Master’s in Environmental Studies, concentration in Environmental Biology, and B.A. in Earth Science, concentration in Environmental Science, both from the University of Pennsylvania.
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Dr. Jun Yang is a Professor in the Department of Earth System Science at Tsinghua University, China. He received his Ph.D. (2004) in Environmental Science, Policy and Management from the University of California at Berkeley. His specific interests include urban ecology, urban forestry, and ecological remote sensing. He has published more than 100 scientific papers. He serves as an associate editor for Urban Forestry & Urban Greening, and serves on the editorial board of Agricultural and Forest Meteorology, Frontier in Sustainable Cities, Biodiversity, Landscape Architecture, and China Urban Forestry. He was a member of the Science and Research Committee of the International Society of Arboriculture (ISA) between 2010 and 2013.
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Andrea Whitely is a garden consultant, designing and implementing new gardens, garden renovations, and garden maintenance in Perth, Australia.
Andrea is probably best known publicly for her work on 720 ABC radio with Sabrina Hahnas The Soil Sisters. Sabrina and Andrea hosted the very popular call-in program answering gardening questions for four years. They traveled together around Western Australia appearing live and were particularly popular in Western Australia sharing witty repartee as well as their love of all things garden related.
Andrea is a Regional Director with GardenComm International based in New York, USA. Since 2015 and prior to Covid-19 she traveled through the United States extensively attending the annual conferences and extending her trips to take in more gardens with friends.
Andrea has spoken publicly at Women of the Wheatbelt in Meriden, Gidgegannup Field Day, Kalamunda Community Garden, Australian Garden History events, Nannup Flower and Garden Festival, and at a variety of corporate events in Perth. For many years, as a member of the Horticulture Media Association, Andrea appeared as a speaker at The Perth Flower and Garden Festival.
Andrea has contributed to various gardening magazines including regular articles appearing in Hort Journal. The Australian Garden History Journal and HMA News as well as Our Gardens, Your Garden, Gardening Australia, and The Garden Guru papers. Her images have been published in The West Australian, and Australia’s Open Garden Scheme Guidebook, and many local newspapers around the state.
Andrea has traveled and visited gardens through Europe, Asia, the UK, The Pacific, The USA, and of course every state and territory in her homeland, Australia. She has even been to visit, Highgrove, the home of HRH Prince Charles.
Andrea is an award-winning blogger and is active on Social Media sites Facebook, Instagram Twitter, and Pinterest.
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David Hewitt has been working with plants, animals, soils, and water
for more than twenty-five years, starting when he began working on
small farms in upstate New York. He has served in a variety of roles
at a number of Philadelphia institutions, including the Wagner Free
Institute of Science, and as a lecturer at the University of
Pennsylvania and a research associate in the Department of Botany at
the Academy of Natural Sciences. He was an AAAS Science and Technology Policy Fellow in
Washington, DC, working in agricultural policy. David has an A.S. from
the Community College of Philadelphia, a B.A. in biology from the
The University of Pennsylvania and a Ph.D. from the Department of
Organismic and Evolutionary Biology at Harvard University.
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Max Paschall is the Native Plants Coordinator at the Schuylkill Center for Environmental Education, managing the nursery and native plant sales. He is an ISA certified arborist, fourth-generation horticulturist, and founder of Shelterwood Forest Farm - an experimental land stewardship project exploring the intersection of agriculture, horticulture, forestry, and climate resiliency. His work focuses on climate change adaptation, particularly through the practice of assisted migration.
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Alan M. Jones is President of Manor View Farms in Monkton, Maryland. He was born in London, England, and immigrated to the United States in 1984.
Prior to attending Pershore College of Horticulture, Alan gained horticultural experience by working at The Royal Gardens, Windsor Castle, and the Savill Gardens, Valley Gardens, and Heather Garden in Windsor Great Park.
After graduating from Pershore College he joined Oakover Nurseries in Ashford, Kent, England, a seedling and propagation nursery. He joined Princeton Nurseries in 1984 after immigrating to the U.S. He became a vice president of Princeton Nurseries before leaving in 1994 to join Manor View Farm, Monkton, Maryland.
Along with two partners, Alan purchased Manor View Farm in 2007. One year before the recession! Manor View Farm is a 100-acre nursery growing a wide range of B&B trees and shrubs, a propagation division selling potted shrub liners to other nurseries, as well as an extensive Landscape Distribution Center serving the landscape contractor industry in Baltimore, Washington D.C., and northern Virginia.
Manor View is licensed to propagate introductions from Proven Winners, PlantHaven, Plant Nouveau, Concept Plants/Plant Tipp, and others.
Manor View Farm is located in the historic and scenic My Lady’s Manor in northern Baltimore County, Maryland.
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Today’s Show is a special edition highlighting the Pennsylvania Horticultural Society’s (PHS) Philadelphia Flower Show. We have two special guests Sam Lemheney and Tim Iffel.
Sam Lemheney is the Chief of Shows and Events at PHS and directs the strategy, planning, and execution of all events including the annual Philadelphia Flower Show where over 250,000 visitors from around the world experience the work completed by him, his team, and PHS every year. Sam is a judge for flower shows in Singapore, Japan, and South Korea, and has judged the floats at the Tournament of Roses Parade in Pasadena, California. He is also an active member of the International Festivals and Events Association.
Sam received his B.S. in Plant Science from the University of Delaware and has had a lifelong passion for horticulture. He began his career at The Walt Disney Company in the Land Horticulture Science Program and eventually rose to the position of Area Manager of the Epcot International Flower & Garden Festival.
Our second guest is Tim Ifill who is the Associate Director of Trees at PHS, supporting communities around the region that are working together to share the incredible benefits of trees. He leads a team that works with an incredible group of volunteers, community organizations, and government agencies to establish and maintain healthy tree canopies in Philadelphia-area neighborhoods.
Tim received a B.A. in linguistics from Haverford College. Prior to joining PHS, Tim served as Executive Director of Philly Fellows, a program he co-founded that built capacity for Philadelphia anti-poverty organizations and started young people on careers in public service. He started his career with the U.S. Forest Service, where he was lucky enough to serve in the National Forest, which is home to the world’s oldest living tree.
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Jason Lubar has been employed at Morris Arboretum of the University of Pennsylvania as the Associate Director of Urban Forestry for over twenty years. His career has focused on educating a wide audience about trees and natural resources. He teaches professional-level arboricultural courses, presents at international conferences, and supports Morris Arboretum’s educational mission by providing a wide range of tree-related consulting services to a diversity of clients including design firms, arborists, townships and municipalities, schools, and corporations.
Jason is the President of the ISA PennDel Chapter and is a Board-Certified Master Arborist, Tree Risk Assessment Qualified, and a member of the American Society of Consulting Arborists and holds the ASCA Tree and Plant Appraisal Qualification. He also is on the Executive Board and is treasurer of Pennsylvania’s Urban and Community Forestry Council.
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Konstanze Fabian is an ISA Certified Arborist and ASCA Consulting Arborist. She holds a bachelor's degree in horticulture from Temple University and graduated with a master's degree in environmental studies from the University of Pennsylvania.
Konstanze has over twenty years of experience in the Green Industry. Native to Germany, she began her career as an urban forester working with the trees in Berlin. After moving to the U.S. Konstanze worked as an assistant greenhouse manager, and then as an estate horticulturist. Before moving to Denver in 2018 to manage the Colorado operations for Bartlett Tree Experts, she spent four years with Bartlett as a plant health care specialist and arborist representative in the greater Philadelphia area.
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Alex Smith is the owner of Division Street Landscaping, which is entirely staffed by ex-offenders. Alex started his journey while he was incarcerated. While serving a 30-year prison sentence for carjacking, assault, and handgun violations he was part of a group of guys who petitioned the warden for permission to start a horticulture program in prison. He became a Master Gardener behind bars and that program has now spread to other facilities in the state of Maryland. Now home, after serving 15 years of his 30-year sentence, he has created Urban Roots Apprenticeship a training program at the Baltimore Tree Trust where he served as the Director of Operations for five years. He has also created Division Street Academy under his own company with the goal of training guys in landscaping and entrepreneurship specifically in the landscaping industry. He also consults Workforce Development programs across the country that cater to the green job industry. He believes that there is a special kind of healing that takes place when the citizens of a community that once destroyed the community play a vital role in beautifying and maintaining those same places.
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Jim Duggan leads the marketing and sales operations for Rootmaker Products Company, Inc. He oversees directing the sales organization and developing digital marketing programs to build the adoption of the Rootmaker growing technology. Jim Duggan is responsible for the strategic leadership of the sales and marketing department within the business and contributes to the overall growth strategy.
Duggan brings with him nearly 40 years of experience marketing high technology products and services to build companies through targeted growth. He has worked with both large and private companies. As RootMaker develops its next generation of disruptive products, Duggan will be instrumental in creating the company mission of expanding its vision of Landscape Scale Reforestation.
In his role prior to joining RootMaker, Duggan led the growth of an aerospace distributor from $28 million in annual sales to over $95 million. He has consulted with Rootmaker for the last 10 years, and he has been instrumental in building their vision of changing the way trees are grown into a reality.
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Carol Wagner is a long-time horticulturist at Haverford College in Haverford, Pennsylvania a suburb of Philadelphia. A life-long resident of Southeast Pennsylvania, she graduated from the Professional Gardener Program at Longwood Gardens in Kennett Square, Pennsylvania. She takes great pride in the history and plantings at Haverford, especially the College's great-grandchild of the Penn Treaty Elm. She recently became a founding member of the Newtown Township Shade Tree Commission.
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Phil Forsyth currently serves as Co-Executive Director of the Philadelphia Orchard Project (POP), a non-profit that plants and supports community orchards in the City of Philadelphia. Phil has led POP’s orchard design and development since its first plantings in 2007. In his role, he works with POP’s board and staff to design and plant orchards, coordinate volunteers, and lead educational programs. Phil has eighteen years of experience in urban farming, gardening, and landscaping and holds a BS in Horticulture and Landscape Design from Colorado State University. In 2017, Phil received the first-ever Mary Seton Corboy Award for Public Horticulture from the Pennsylvania Horticultural Society.
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Dwayne Sperber, founder, and owner of Wudeward Urban Forest Products has dedicated himself to building the urban wood industry. For nearly 20 years he has advised on the vast potential of this renewable resource. Dwayne is called on to provide urban wood utilization guidance and products for leaders across sectors including municipalities, academia, arborists, design professionals, manufacturers, and suppliers. Dwayne is an appointed member of the Wisconsin Urban Forestry Council and founding member and advisor of the Urban Wood Network.
(Wudeward is pronounced “Wood-word”)
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Lara Roman is a Research Ecologist with the USDA Forest Service, Northern Research Station, Philadelphia Field Station. She studies the temporal dynamics of urban forests, including tree mortality and growth, canopy cover change, historical development of urban forests, species composition change, and citizen science monitoring. She has led or co-authored over 40 publications, including both academic journal articles and research summaries for professional arboriculture magazines. Her studies take a participatory research approach, collaborating with practitioners for study design and implementation. She received a Ph.D. at the University of California, Berkeley, and a Bachelor of Science in biology, and a Master of Environmental Studies from the University of Pennsylvania. Her research has been funded by the National Socio-Environmental Synthesis Center, the TREE Fund, the Garden Club of America.
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Daan Bleichrodt is on a mission to re-connect urban kids with nature worldwide. He is Chief Tree Planting Officer at the IVN environmental education and leads the Tiny Forest movement in the Netherlands. He is also a consultant and teacher for Earthwatch in the UK, Goodplanet in Belgium, and Ecosystem Restoration Camps. He currently lives in the leafy town of Den Dolder with his wife Kiki and two sons - Mees and Tijn. He has a bachelor’s degree in Hospitality Management and a master’s degree in business administration and organizational change. Since joining IVN ten years ago, he has learned a great deal about restoring nature and restoring people’s connection to the living world.
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Lori Hayes is the Director of Urban Forestry, and District Tree Crew, Districts 5, 6, 7, & 8, Philadelphia Parks & Recreation and is a certified arborist through ISA (International Society of Arboriculture). She oversees many projects including the TreePhilly Program, street tree planting, and maintenance. Lori graduated from Temple University with a Bachelor of Science in horticulture, she is a Penn State Master Gardener, and a lifelong learner. Lori's passion for trees and the urban forest has given her the nickname The Lorax.
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Diane Ehrich owns Collins Nursery, a small retail nursery in Glenside, Pennsylvania which specializes in container-grown native plants from the Mid-Atlantic region. The nursery was founded by John Collins, a Philadelphia landscape architect, and educator. Diane has continued to fulfill and expand John’s mission of propagating and providing native plants to homeowners, non-profits, and local townships. Diane studied art at Rhode Island School of Design and Boston University and has an MA in art education from New York University. She draws on her experience as a teacher to help educate customers about the benefits of native plants. An enthusiastic gardener, Diane went back to school at Temple University/Ambler to study horticulture in 2004 and soon after, went to work helping John in his backyard nursery. She has worked as a gardener, at a local garden center, and has done ongoing volunteer work with the Friends of High School Park, a native plant restoration project in Elkins Park, Pennsylvania. In addition, Diane is a botanical artist and a member of the Philadelphia Society of Botanical Illustrators and the American Society of Botanical Artists.
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Richard McCoy has over 30-years of experience in the green industry. He is the visionary behind Richard A. McCoy Horticultural Services Inc., founded in 1995. Since transitioning from conventional to organic landscape methods in 2005, McCoy Horticultural has been offering environmentally and sustainably responsible, landscape design, installations, maintenance, green infrastructure, and organic lawn care.
His work at Stony Wood Garden, a 3.5-acre private woodland garden in Princeton, New Jersey, has been recognized by The Smithsonian Institute's Archives of American Gardens.
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Abra Lee is a national speaker, writer, and owner of Conquer the Soil a platform that combines Black garden history and current events to raise awareness of horticulture. She has spent a whole lotta time in the dirt as a municipal arborist, extension agent, airport landscape manager, and more. Lee is a graduate of Auburn University and alumna of the Longwood Gardens Society of Fellows, a global network of public horticulture professionals.
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Max Blaustein is an Environmental Scientist with the Philadelphia Department of Parks & Recreation's Natural Lands Management team. His work has focused on the restoration and operation of a historic nursery facility in West Fairmount Park, where he propagates native plants for conservation projects that support the ecosystem function and habitat value of the 5,600 acres of natural areas within the City of Philadelphia.
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Robin Rick has been a Woodlands Grave Gardener since 2016 and The
Woodlands' Facility and Landscape Manager since 2018. It is with great
pleasure and purpose that Robin works to care for the locally and
nationally significant treasure that is The Woodlands. She brings to
the position professional experience in architecture and
horticulture. After a career in architecture, she worked as a
residential gardener and attended the Barnes Foundation Arboretum
School where she earned a Certificate of Horticulture. At The
Woodlands Robin's responsibilities bridge the two disciplines -
helping maintain the site's historically significant features -
buildings and trees - while welcoming daily use by the West Philly
community and other visitors.
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Jordan Foreman grew up in Central Jersey just a stone's throw from Six Mile Run. He has always loved to hike in the woods, but it wasn't until he was a student at Rutgers University that Ecology became his passion. He was an intern at Rutgers Gardens at the University, and he interned at Central Park in New York City through college. Then, Jordan spent a year as an AmeriCorps Watershed Ambassador before he discovered the Professional Horticulture Program at Longwood Gardens with the help of the kind folks at the Delaware River Basin Commission. After finishing Longwood's Professional Horticulture Program, Jordan moved to Durham, North Carolina to become an Arborist for Bartlett Tree Experts. Currently, Jordan is a Foreman and Plant Healthcare Specialist for Bartlett where he continues to inspire people through his passion for plants.
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Dale Hendricks has been growing and propagating plants professionally since 1975. In 1988 he co-founded North Creek Nurseries, Inc in order to propagate and grow perennials and grasses with an emphasis on natives and garden selections of natives. In 2009 he founded Green Light Plants, LLC to build carbon-friendly and regenerative landscapes; growing native, woodland, and permaculture plants, organically and joyfully. He has been honored with the American Horticulture Society’s Individual Commercial award and the Perennial Plant Association’s Young Professional Award, and the Pennsylvania Horticultural Society award of merit. He has taught plant propagation at Longwood Gardens and lectures widely.
He served on the founding board of the Sustainable Business Network of Greater Philadelphia and as co-chair from 2004-2007. He lives in Landenberg, Southern Chester County, Pennsylvania with his family where he gardens, propagates plants, and grows good soil.
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Hasan Malik's fascination with trees has been a constant for as long as he can remember. With a hand pruners or saw, he readily gave attention to the tree problems he encountered growing up in Northeast Philadelphia. Hasan is an ISA Certified Arborist and has a degree in Civil Engineering from Temple University.
In 2008 Hasan founded Tree Northeast. The nonprofit organization plants street and yard trees throughout Northeast Philadelphia, engaging volunteers and residents by greening the community. To date, the organization has planted over 1000 trees and helps maintain them regularly.
Tree Authority started in 2012 with the goal of providing superior tree care in the Southeastern Pennsylvania Region. The nursery began the following year in Perkasie, Pennsylvania. Hasan and his wife Tasneem continue to expand the nursery, which now stocks over 200 varieties of fruit, shade, and ornamental trees, including a diverse selection of natives.
The Tree Authority's goal is to give trees the best chance to survive in an urban landscape right from the nursery. The nursery uses best practices to grow strong, healthy trees with virtually no girdling roots, no transplant shock, and the trees have visible root flares.
Visiting the Tree Authority in Perkasie Pennsylvania makes evident Hasan's melding of horticulture and engineering. His innovations for container types, staking systems, irrigation techniques, and soil mixes consistently translate into healthy vigorous trees.
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Michael Dunn is the founder and president of Preservation Tree and is the Consulting Municipal Arborist for West Chester Borough in Pennsylvania. He is also an Urban Forestry Consultant with LandStudies, a leading environmental firm in Lititz, Pennsylvania. His main area of focus since 2016 has been the integration of the urban forest into urban and regional planning in Southeastern Pennsylvania and beyond.
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Steve Goin is the Director of Land and Facilities at the Schuylkill Center for Environmental Education, the largest privately held greenspace in the city of Philadelphia. He graduated from Penn State University with a bachelor of science in wildlife and fisheries with a minor in forest science. He is an ISA Certified Arborist with 19 years of experience managing trees in a variety of settings. He spent over a decade as an Arborist working for Bartlett Tree Experts, servicing residential and commercial properties on Maryland's Eastern Shore, in the mountains of Southwest Virginia, and finally managing the Philadelphia office where he cared for trees along tight city streets and out in the expansive landscapes of the suburbs. It was during this time that he came to know the Schuylkill Center, a 340-acre nature preserve within the city of Philadelphia, protected in perpetuity under a conservation easement. He volunteered his time at the Native Plant Sales where he answered questions about trees.
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Aaron Greenberg is the Arboretum Manager for Laurel Hill and West Laurel Cemeteries, where he oversees gardens, grounds, and a collection of over 4,000 trees. He is also the State Coordinator for the Pennsylvania Champion Tree Program which documents the largest trees of each species in the state. Aaron is a Board Certified Master Arborist with the ISA, and Tree Risk Assessment Qualified.
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Robert Wells (Bob) is a consulting arborist with 49 years of experience in the arboricultural industry.
He entered the tree world as a climber with Bartlett Tree Experts in 1971 in Piscataway NJ.
In 1973 he started the firm of Wells Tree & Landscape in Princeton NJ which is now in its 47th year under the leadership of his son, David Wells.
Bob completed his BS from Rutgers Cook College in Plant Sciences in 1985 and a master’s in environmental studies from the University of Pennsylvania in 2013. He is an NJ Certified Tree, a Registered Consulting Arborist, and a Board-Certified Master Arborist
In 2007 Bob joined Morris Arboretum of the University of Pennsylvania as an Associate Director with the Urban Forestry Consulting Section with Jason Lubar. They focused on both internal and external contracts involving a myriad of tree-related matters including inventory, assessment, and management of the 7,000 campus trees at the University of Pennsylvania. It was during this time that he also helped to form the School of Arboriculture at the Arboretum which brings in outside speakers and offers classes to the greater Philadelphia arboricultural community. He retired on July 1, of this year
Community service has been a big part of Bob’s life and over the years he has served as the Chair of Princeton Township Shade Tree Commission, and President of the Marquand Park Foundation.
Bob is now doing the occasional consulting job for his son with Wells Tree and looks forward to getting a chance to finally read all those books that have been on his bucket list.
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For over two decades, Charles King Sadler has immersed himself in the design and care of landscapes throughout North American, this has resulted in his being sought after to work on prestigious public and private properties across North America and being consulted by top landscape practices domestically and from abroad.
Charles began his career as a visual storyteller, in the field of illustration, with a degree from the Rochester Institute of Technology, he applied his artistic vision and talent public and private commissions including contributing newspaper illustrations for publications such as the Los Angeles Times and New York Times. After working in the landscape profession for a period Charles returned to school, SUNY-ESF on the campus of Syracuse University, to pursue master’s studies in Landscape Architecture, and he started his own design firm in order to apply his philosophy of design and horticultural care within the design aesthetic. Charles is an International Society of Arboriculture Certified Arborist.
For more information on King Garden, visit kinggardeninc.com
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Joan Maloof is a writer, an ecologist, and a conservationist with a unique voice in today’s times. She has studied and worked with plants her entire life; her formal education includes a Bachelor’s degree in Plant Science, a Master’s degree in Environmental Science, and a Doctorate in Ecology. She is a Professor Emeritus at Salisbury University, where she taught Biological Sciences and Environmental Studies. Maloof has published numerous research articles in publications such as Ecology, American Journal of Botany, and the International Journal of Environmental Studies. Maloof’s books include Teaching the Trees (2005), Among the Ancients(2011), Nature’s Temples: The Complex World of Old-Growth Forests (2016), and The Living Forest: A Visual Journey into the Heart of the Woods(2017).
In addition to her research and writing, Maloof founded an organization with the goal of creating a network of protected forests across the US. That organization, the Old-Growth Forest Network, now has thousands of supporters. Maloof travels widely to educate others regarding the extent and condition of our forests and encourages their preservation.
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Maria is a 4th generation nurseryman and proud of it! After graduating from Penn State with a BS in Horticulture, she ran the family’s 1000-acre wholesale nursery, destination attraction garden center, and new plant research and development division. She took a new path in 2009 partnering with her father to form UpShoot LLC, a boutique horticultural marketing firm focusing on sales, marketing, and licensing of new plant introductions and gardening-related products. In 2019 Maria partnered with Spring Meadow Nursery to develop the Proven Winners® ColorChoice® Flowering Trees program.
Maria is a freelance writer for both green industry trade journals and consumer gardening magazines. In 2015 she released her first book with co-author Pam Bennett titled Garden-Pedia: An A-Z Guide to Gardening Terms. This ASHS award-winning book is going into its second printing. Additionally, she has spoken nationally and internationally on a variety of gardening-related topics.
Maria has pushed the glass greenhouse ceiling becoming the 1stfemale President of the Ohio Nursery & Landscape Association and International Ornamental Crabapple Society. She serves as the Vice-President of GardenComm: Garden Communicator’s International. She is also on the ONLA Legislative Committee. Locally she is on the Salvation Army Advisory Board in Painesville, Ohio.
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Nancy Buley is Director of Communications for J. Frank Schmidt & Son Co., wholesale tree growers of Boring, Oregon, where she has been “talking trees” for 26 years. A former newspaper reporter and food editor, she graduated in Technical Journalism and Horticulture from Oregon State University. A Lifetime Honorary member of the American Society of Landscape Architects, Nancy has earned national recognition for her tree advocacy and stewardship efforts including a decade-plus service on the board of directors of Friends of Trees. A GardenComm (member) and a graduate of the Society of Municipal Arborists’ Municipal Forestry Institute (MFI), Nancy lives and gardens in Boring, beneath an ever-widening canopy of trees.
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Andy Schenck, a self-professed plant nerd, is the owner of Sam Brown’s Wholesale Nursery in Malvern, PA where he has worked for 22 years. Andy received a B.S. in Ornamental horticulture from the University of Delaware and is a member of the Plant Selection Committee for the Rare Plant Auction at Longwood Gardens (Delaware Center for Horticulture). Andy’s long-lived passion for the outdoors, nature and gardening inspired his desire for life-long learning and his successful career in horticulture.
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John Berryhill is the Landscape Curator for the Botanic Garden of Smith College where he has worked for just over 23 years. In that time, he has served several roles, including wildflower gardener and arborist. He served as the Chief Arborist there for 15 years and has transformed the care of Smith’s arboretum from an external, contracted operation to an internal one with a team of three certified arborists.
This week, John talks about risk assessment on Smith College's campus.
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Patrick Joyce is the Nursery Manager at Longwood Gardens. He oversees the woody plant production and procurement for the Gardens. He earned a Bachelor of Science in Horticulture from West Virginia University and has been working in the Nursery Industry for over 11 years. When he isn’t working with plants he enjoys traveling, the outdoors, and being with his family.
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Christopher Uhland is the Head Arborist and Owner of Harmony Hill Nursery, LLC a field production woody plant nursery in Downingtown, Chester County, PA. He enjoys the challenge of growing trees and shrubs as well as becoming an expert on all things tree-related from propagation, production, planting, to management in the landscape. His other areas of expertise relate to Arboriculture as he is an ISA Certified Arborist, Register Consulting Arborist, and Pennsylvania Certified Horticulturalist. Christopher has been a keynote speaker at local and regional events such as the CENTS conference in Columbus, Ohio, National Nursery Growers Business Coalition, and the Southeastern Pennsylvania Green Industry Conference at Delaware Valley University. Chris holds a Bachelor of Science in Ornamental Horticulture with minors in Environmental Science and Secondary Education from Delaware Valley University, and a master’s Certificate in Agriculture Business from Virginia Polytech in conjunction with Farm Credit.
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Paul Meyer is the retired F. Otto Haas Executive Director of the Morris Arboretum. During his 43-year tenure at the Arboretum (28 years as Director), Paul played a major role in the Arboretum’s restoration of its historic gardens, architecture, and vistas with notable plant collections. He has taught Urban Horticulture at the University of Pennsylvania’s Landscape Architecture and Regional Planning Department and is a frequent contributor to horticultural publications.
Paul is a leader in the field of plant exploration and evaluation. He completed twelve expeditions to countries including China, Korea, Taiwan, Armenia, and the Republic of Georgia, where he collected plants from various sources to introduce greater genetic diversity.
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The beautiful tree-lined streets of Milwaukee, Wisconsin first influenced Julianne Schieffer to make trees and forests her life’s passion. Armed with Urban Forestry and Botany degrees from the University of Wisconsin - Stevens Point, and an MS in Tree Pathology from the University of Massachusetts - Amherst, she came to Pennsylvania over 30 years ago to work with people and trees. Her current position as Penn State Extension Urban Forester allows her to promote sound tree and forestry practices for communities in the 10 counties of southeastern Pennsylvania. She is a Board Certified Master Arborist, Life Member of the International Society of Arboriculture, Certified Municipal Arborist, and is Tree Risk Assessment Qualified.
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Jennifer Walker is the Head Gardener at the Barnes Foundation at Saint Joseph’s University. She enjoys the challenge of managing and growing the tree canopy and other flora of this historic arboretum, as well as being engaged in the life of the university through student engagement and collaboration with faculty and staff. Her other professional areas of expertise include environmental management and civic engagement with specific attention to the effects and presence of structural inequality, community conflict, and stakeholder development. Jennifer has authored numerous publications including a manual for the EPA on vacant lot re-greening in the Rust Belt and completed landscape design and management plans in communities ranging from Akim Oda, Ghana to a coastal marine lab in rural Georgia. Ms. Walker holds a Bachelor of Science in Landscape Horticulture from North Carolina State University, and a master’s in landscape architecture from the University of Georgia.
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John Berryhill is the Landscape Curator for the Botanic Garden of Smith College where he has worked for over 23 years. During that time, he has served several roles, including wildflower gardener and arborist. He served as Smith’s Chief Arborist for 15 years and has transformed the care of Smith’s arboretum from an external, contracted operation to an internal one with a team of three certified arborists.
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Julie Snell is co-founder and principal at TEND landscape inc, a woman-owned landscape architecture firm in Philadelphia, and co-owner of Redbud Native Plant Nursery in Media, PA. Julie is also an adjunct instructor in the Department of Architecture and Environmental Design, Tyler School of Art and Architecture, Temple University. In these different roles, she positively impacts the environment either by bridging the gap between landscape design, installation, and maintenance at TEND or performing design consultations and informal educational sessions with homeowners at Redbud, or raising awareness of urban ecology in the classroom.
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Louise Clarke is a senior horticulturist employed by the Morris Arboretum of the University of Pennsylvania. She is the horticultural director of Bloomfield Farm, where she curates a woody plant collection that includes more than 1200 trees and shrubs on 67 acres. Louise also tends over 5,000 square feet of vegetated roofs.
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Kathy Jentz is Editor, Publisher, and Founder of Washington Gardener Magazine which is published specifically for the local metro area of Washington D.C. and its suburbs. The premier issue of the magazine was released in March/April 2005 and this year, celebrating its 15th year in publication.
The content of the magazine gives real examples that you can use directly in your garden while showing how to stretch garden resources. The articles are peppered with whimsy, with a good sense of humor and wonderment.
In this segment, Kathy will be talking about some of her favorite small trees for urban areas.
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Bob Gutowski Director of Education, Visitor Experience, and Outreach at the Morris Arboretum of the University of Pennsylvania shares his many years of tree planting as a child and right through his professional career at Morris Arboretum. He retires in September.
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Mindy Maslin founded Tree Tenders while working for PHS (Pennsylvania Horticulture Society) 30 years ago. The program has been adopted by many cities throughout the country. Mindy's unique perspective on trees comes from her early years as a social worker. Trees live in communities too!
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