Faculty
Peter Del Tredici

Peter Del Tredici holds a BA degree in Zoology from the University of California, Berkeley (1968), a MA degree in Biology from the University of Oregon (1969), and a Ph.D. in Biology from Boston University (1991). He retired from the Arnold Arboretum of Harvard University in 2014 after working there for 35 years as Plant Propagator, Curator of the Larz Anderson Bonsai Collection, Editor of Arnoldia, Director of Living Collections and Senior Research Scientist. Dr. Del Tredici taught in the Landscape Architecture Department at the Harvard Graduate School of Design from 1992 through 2016 and is currently teaching courses on Urban Ecology in DUSP. He is the winner of the 1999 Arthur Hoyt Scott Medal and Award presented by the Scott Arboretum of Swarthmore College and in 2013 the Veitch Gold Medal presented by The Royal Horticultural Society (England) “in recognition of services given in the advancement of the science and practice of horticulture.”

Dr. Del Tredici's interests are wide ranging and include such subjects as plant exploration in China, the root systems of woody plants, the botany and horticulture of magnolias, stewartias and hemlocks. He is an expert on the Ginkgo tree--having studied it for over 25 years--and has made numerous trips to China to study its natural and cultural history. Since 2004, his work has focused on urban ecology which resulted in the publication of the widely acclaimed “Wild Urban Plants of the Northeast: A Field Guide” (Cornell University Press, 2010) as well as a GPS-based mobile app, "Other Order" (2014) which interprets the natural and cultural history of the Bussey Brook Meadow section of the Arnold Arboretum (with Teri Rueb). His other interests include climate change impacts plant phenology and the history and ecology of invasive species. He lectures widely in North America and Europe and is the author of more than 130 scientific and popular articles.