American Brugmansia and Datura Society - http://www.abads.net/
Offers culture information, searchable plant database, registry and photographs. |
American Hibiscus Society - http://www.americanhibiscus.org/
Includes membership information, publications, chapter locations, events, and links. |
Georgia Perennial Plant Association - http://www.georgiaperennial.org/
Organization of perennial gardeners in the state of Georgia presents information on meetings and membership, a featured plant section, and photo galleries. |
International Lilac Society - http://lilacs.freeservers.com/
Formed in 1971 to stimulate interest in the genus Syringa and to promote its use in public and private landscaping. |
National Chrysanthemum Society - http://www.mums.org
Promotes the propagation and cultivation of the chrysanthemum and increase the bonds of fellowship among growers of the chrysanthemum. |