Azalea Chapter of the ARS
Home, Gardening, Associations, Shrubs - Azalea Chapter of the ARS. Georgia based group provides tips on identification and propagation, event calendar, photographs and plant resources.
https://www.azaleachapter.com/
Rhododendron Species Foundation
The Rhododendron Species Foundation is a non-profit organisation dedicated to the conservation, research, acquisition, evaluation, cultivation, public display, and distribution of Rhododendron species. The Foundation provides education relating to the genus; and serves as a unique resource for scientific, horticultural, and general gardening communities worldwide. Visit our world-class botanical garden featuring 22 acres of rhododendrons, ferns, perennials, flowering trees, and shrubs.
https://www.rhodygarden.org/index.php
The American Rhododendron Society Welcomes You
Home, Gardening, Associations, Shrubs - American Rhododendron Society. Encourages interest in and disseminates knowledge about rhododendrons and azaleas through meetings, publications, scientific studies, research and culture information.
http://rhododendron.org/
The Augusta Rose Society - Augusta, GA
Home, Gardening, Associations, Shrubs - The Augusta Rose Society. Contains event information, links, members list, and mission.
http://www.theaugustarosesociety.org/
Palm and Cycad Societies of Australia
Home, Gardening, Associations, Regional - Palm and Cycad Societies of Australia. The Palm and Cycad Societies of Australia (PACSOA) web-site features technical and non-technical articles of interest to palm and/or cycad enthusiasts.
http://www.pacsoa.org.au/
Washington Association of Landscape Professionals
Home, Gardening, Associations, Regional - Washington Association of Landscape Professionals. Provides educational programs to its membership and educates the public about the landscape industry.
https://www.walp.org/
The Cycad Society, Inc.
Home, Gardening, Associations, Regional - Cycad Society. Education and conservation of Cycads, rare and unusual gymnospearm plants.
http://www.cycad.org/
Dixie African Violet Society
This is the official WEB site of the Dixie African Violet Society (DAVS), a nonprofit organization, founded in 1956 to afford an association of persons with similar interest in African violets within an area not too vast for occasional meeting
http://www.davs.org/
Northern California Daffodil Society
Home, Gardening, Associations, Regional - Northern California Daffodil Society. Offers information about growing daffodils, sources of information, and shows.
https://daffodil.org/
Holly Society of America, Inc.
Home, Gardening, Associations, Regional - Holly Society of America. Provides an information exchange through scientific studies, publications, lectures, meetings, and visiting holly collections.
http://www.hollysocam.org/