Plants
- 581
- Coral Springs Orchid Society
- Includes online newsletter, meeting schedule, list of prize winners and Phalaenosis growing tips.
- 582
- East Everglades Orchid Society
- Includes membership information, calendar of events, cultural tips and free orchids wallpaper graphics.
- 583
- Sarasota Orchid Society
- Meets monthly at Selby Gardens Activity Center, Sarasota, FL. The organization has an annual orchid show and publishes a monthly orchid culture newsletter specifically for Southwest Florida.
- 584
- The South Florida Orchid Society
- A non-profit organization whose purposes are to promote, carry on and aid in the development, improvement and preservation of orchids and to disseminate information concerning the culture and hybridization of orchids.
- 586
- Venice Orchid Society
- Society in Florida presents information about shows and events, meetings, and results of monthly show table judging.
- 588
- Diablo View Orchid Society
- Features meeting details and members' orchid pictures. Located near Walnut Creek.
- 589
- Five Cities Orchid Society
- Located in Arroyo Grande. Information on the history of the society and upcoming events and show. Provides information on orchid culture, and care of orchids.
- 590
- Orange County Orchid Society
- California society offers meeting details, archived newsletters, an events calendar and cultural information.
- 591
- Orchid Society of Southern California
- Meeting monthly in Burbank, with members from across the greater Los Angeles metropolitan area, the OSSC is Southern California's oldest orchid society.
- 593
- San Diego County Orchid Society
- Membership information, online newsletter, culture sheets, members' photo gallery and meeting schedule.