Leah Blanton

Leah Blanton is a skilled planting designer, using her artistic eye and horticultural knowledge to create beautiful and functional urban landscapes. She currently works as a Project Manager in Public Landscapes at the Pennsylvania Horticultural Society where she designs and manages a diverse range of public horticulture projects in Philadelphia.

Leah will be presenting Connecting People with Plants: Revitalizing Urban Spaces through Horticulture.

Tour of grounds

Bill Cullina

William (Bill) Cullina is the F. Otto Haas Executive Director of the Morris
Arboretum of the University of Pennsylvania. Prior to this he was the
President and CEO of Coastal Maine Botanic Garden for eleven years.
Cullina holds degrees in plant science and psychology, has been working in
public horticulture for 25 years, and has extensive experience in
horticultural and forestry research, and commercial nursery production. A
well-known author and recognized authority on North American native
plants, Cullina lectures on a variety of subjects to garden and professional
groups and writes for popular and technical journals. His books include,
Wildflowers; Native Trees, Shrubs, and Vines; Understanding Orchids;
Native Ferns, Mosses, and Grasses, and Understanding Perennials.


Bill will be presenting Southern Comfort: Southeastern Trees and Shrubs for a Warming Mid-Atlantic.

Tour of grounds

Eric Hsu

Eric Hsu is the Plant Information Coordinator at Chanticleer Garden. He is a writer whose work has been featured in various publications, including RHS’s The Plant Review and Wall Street Journal. In addition, Eric writes for his blog Plinth et al.

Eric will be presenting Japanese Americans and Their Plant Introductions: A Brief Look.

Tour of grounds

Hasan Malik

Hasan Malik started Tree Authority in 2012 with a goal of providing superior tree care in the Southeastern Pennsylvania region; the nursery began the following year in Perkasie. Hasan and his wife Tasneem continue to expand the nursery which now stocks varieties of fruit, shade, and ornamental trees. Hasan is an ISA Certified Arborist and has a degree in Civil Engineering from Temple University. In 2008 Hasan founded Tree Northeast, a nonprofit organization that plants street and yard trees throughout Northeast Philadelphia, engaging volunteers and residents in greening the community.

Hasan will be presenting How to Select Trees That Will Thrive.

Tour of grounds

Georgia Silvera Seamans

Georgia Silvera Seamans is an urban and community forester, and the director of Washington Square Park Eco Projects. Georgia is also an independent researcher and freelance writer. She has bylines with Popular Science, Urban Omnibus, and Audubon, and her research has been published in Urban Forestry & Urban Greening and the Arboriculture & Urban Forestry. She’s an alumna of Wesleyan University, the Yale School of the Environment, and UC Berkeley.

Georgia will be presenting A Park in Six Trees.

Tour of grounds
Blooming flower

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2021 is a virtual conference. Register for access. 

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