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Association of Zoological Horticulture
Nonprofit group dedicated to the advancement of zoo horticulture in zoological parks, gardens, and aquariums.
http://www.azh.org/
Bord Glas
The Horticultural Development Board which has responsibility for the development of the horticultural industry in Ireland.
http://www.bordglas.ie/
Iowa State Horticulture Society
Consists of affiliated organizations that represent and promote specific sectors of horticulture. Includes a list of upcoming activities.
http://www.iowahort.org/
Kanata-March Horticultural Society
The Kanata-March Horticultural Society acknowledges, with gratitude, the financial support it receives through grants from the City of Ottawa and the Ontario Horticultural Association.
http://www.kanata-horticultural.com/
Massachusetts Horticultural Society
Includes information about the New England Spring Flower Show, our educational programs, library, bookstore and special events.
http://www.masshort.org/
Minnesota State Horticultural Society
Networking and information resource for gardeners and horticulturists who work to enhance and preserve plant life in their homes and communities.
http://www.northerngardener.org/
The Horticultural Taxonomy Group
Gives the history of HORTAX, an association of taxonomists and horticulturists interested in the classification and nomenclature of cultivated plants, member information and links to the archives of HORTAX News.
http://www.hortax.org.uk/