Saturday, November 7, 10:00 am – 12:00 noon – The Radicle Underground


Join Dr. Peter Del Tredici of Harvard University’s Arnold Arboretum on Saturday, November 7 from 10 – noon at Berkshire Botanical Garden for an exploration of the important relationship between plants and soil. Developing a clear understanding of what goes on below the ground will help make you a better gardener. Learn about the structure and function of woody- plant root systems as well as the practical aspects of when and how best to water and fertilize trees and shrubs. Dr. Del Tredici will also examine the all-important contribution that soil microorganisms make to the nutrition and survival of plants, both in nature and in cultivation. The lecture will also cover the pros and cons of various methods for “packaging” root systems in commercial nurseries and basic planting techniques. This lecture is a must for anyone who cares about their garden plants both large and small.

Dr. Peter Del Tredici 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 is an Associate Professor in Practice at the Harvard Graduate School of Design, where he has been teaching in the Landscape Architecture Department since 1992. He is the winner of the Arthur Hoyt Scott Medal and Award for 1999 presented by the Scott Arboretum of Swarthmore College, and in 2013 he was awarded the Veitch Gold Medal by The Royal Horticultural Society (England) “in recognition of services given in the advancement of the science and practice of horticulture.”

You may register online ($25) at http://www.berkshirebotanical.org/event/peter-del-tredici-the-radicle-underground/?instance_id=3528 or call 413-298-3926, ext 15.

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