City Farmer*Cool Site* - The Ability Garden began in 1988 as a demonstration garden of five raised beds to accommodate people in wheel chairs to garden.
Garden Forever - A gardening web magazine for gardeners of all ages, abilities and lifestyles.
Garden Partners - An organization in Portland, Oregon. Its mission is to enhance the physical, mental, social, and spiritual well-being of individuals through participation in meaningful garden-related activity.
Gardening with AD/HD - Gardening techniques that work well for the inattentive gardener. Specific plants and techniques.
The Growing Center Inc. - A non-profit horticultural therapy center in Frederick, PA. Community gardens, a monthly meeting for local people and information about horticultural therapy.
Horticultural Therapy Association of Victoria - HTAV fosters and supports horticultural programs and activities which enhance in a meaningful way, the social, emotional and physical well-being of people both in their homes and in a variety of community settings.
Human Issues in Horticulture - List of sites which include gardening with the elderly, with children, and horticulture therapy.
Josh's Garden Web - Handicap Accessible Gardening, article by Josh Spece.
Red Wiggler Community Farm - Founded in 1996 as a non-profit horticulture therapy and vocational training program for adults with developmental disabilities.