The following organisations (listed in alphabetical order) work closely with ASTHP, are organisations with whom we have links or can provide more information on, or services related to, Social and Therapeutic Horticulture / Horticultural Therapy:
Canadian Horticultural Therapy Association:
Promoting the use of horticultural therapy and therapeutic horticulture for diverse populations and in a wide variety of settings, and working to advance HT education and practice across Canada.
Coventry University, Faculty of Life Sciences
Course Director for the Professional Development Diploma in Social and Therapeutic Horticulture is Imogen Gordon – 02476 88 8728 / 7683.  For more information on the course please click here.
Cultivate NSW: 
The lead organisation for horticultural therapy in New South Wales
Horticultural Therapy Association of Victoria: 
HTAV fosters and supports horticultural programs and activities which enhance the social, emotional and physical well-being of people.
Horticultural Therapy South Australia:
Promoting HT in South Australia.
Thrive is a national charity working to help people living with a disability or mental ill health transform their lives through gardening.
The national organisation for therapeutic horticulture in Scotland