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.

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.

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.

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 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.

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!