The Plant a Trillion Trees Podcast

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 Regi...

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 posi...

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...

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 ar...

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 environm...

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.

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 ho...

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. 

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!