Patty Cassidy, MA, is a life-long gardener and registered horticultural therapist who works with elders who live with dementia. She is the president of the Friends of the Portland Memory Garden (www.portlandmemorygarden.org) and serves on the national board of the American Horticultural Therapy Association. Her award-winning book, The Illustrated Practical Guide to Gardening for Seniors, (Anness Press, 2011) has been translated into French and German. www.pattycassidy.com.