- Flowers & Plants Association
Promoting cut flowers and indoor plants in the U.K. Includes care tips, pictures, industry information, and a list of retailers in the U.K.
Hopes to end mal-pruning and improper landscape management practices, and to promote awareness and respect for plants as an integral part of our urban ecology.
- Society for Economic Botany (SEB)
Encourages scientific research, education, and related activities on the past, present, and future uses of plants, and the relationship between plants and people.
- National Chrysanthemum Society
Includes information about the annual convention and show.
- Canadian Peony Society
Contains membership information and newsletter.
- International Bulb Society
Provides information on the growing, conservation and botany of bulbs such as amaryllis, tulips, and hyacinth.
- International Lilac Society
Aims to promote and stimulate interest in the genus Syringa.
- American Clivia Society
Bring together individuals interested in keeping, collecting, and caring for any of the six species and interspecific crosses of Clivia.
- Canadian Ornamental Plant Foundation (COPF)
Nonprofit organization that helps fund new ornamental plant development.
Dedicated to the preservation and cultivation of the Pachypodium species.
- Australian Plants Society (SGAP Victoria)
Hints on growing Australian native plants, where to see Australian plants growing, a diary of events, and extracts from the APS Newsletter.