Orange County Rose Society
- Show and meeting information, with links to useful sites.
- http://www.websightstech.com/ocrs

Santa Clara County Rose Society
- Serves most of the Silicon Valley. Meets in San Jose.
- http://sccrose.org/

Gold Coast Heritage Rose Group
- California heritage roses group founded 2001.
- http://www.goldcoastrose.org/

San Joaquin Valley Rose Society
- Links to rose activities in Northern California and Oregon. Information about Ralph Moore, innovative rose breeder. Many links to public and private gardens, and to a large group of pictures of single roses.
- http://www.rainforest2548.org/

Sacramento Rose Society
- Links to Information about rose culture, public rose gardens, recommended varieties, and show results.
- http://www.sactorose.org/sacramentorosesociety/

The East Bay Rose Society
- Home page of the East Bay Rose Society, in Oakland, CA.
- http://www.eastbayroses.org/

Santa Barbara Rose Society
- Features event calendar, show information, and newsletter.
- http://www.sbrose.org

San Diego Rose Society
- Contains tips, articles, links, and membership information.
- http://www.sdrosesociety.org/

Shasta Rose Society
- Calendar, garden tour and show information, and links to rose-related sites. Meets in Redding, California.
- http://www.shastarosesociety.org/

The Ventura County Rose Society
- Home page of the Ventura County Rose Society.
- http://www.venturarose.org

Marin Rose Society
- Links to many rose resources, included recommended variety lists, mail order sources, poems, and other rose-related pages.
- http://www.marinrose.org/

Mother Lode Rose Society
- Serves the Sierra Motherlode counties of Eldorado, Amador, and Calevaras. In addition to the usual society information, includes an "Ask the Expert" service.
- http://www.motherloderose.org/