"The Healing Nature of Horticultural Therapy" Presented by Helen Lake, Horticultural Therapist & Former Master Gardener. Come join us at Rady Park, where your Fauquier and Rappahannock Master Gardeners maintain the beautiful Arboretum, containing over 90 different trees and shrubs. Horticultural therapy involves the use of gardening and plant related activities as a tool to improve physical, intellectual, psychological and social well-being. This event is free to the public. Registration is not required.