American Public Garden Association
International Society of Arboriculture
Master Gardener's of Franklin County
Ohio Nursery & Landscape Association
Columbus Landscape Association
American Horticulture Society - Your Friends of Chadwick Arboretum membership card also makes you eligible to visit public gardens around the nation with reduced or free admission as part of our reciprocity agreement with the American Horticulture Society’s Reciprocal Admissions Program.