Ontario Hosta Society
The Ontario Hosta Society was formed March 23, 1995. The society's intention is to keep members informed of all the latest information about the Genus Hosta. We are looking for anyone interested in North American's favorite shade perennial. Our membership already includes many gardeners, nurseries and growers. So, if finding out more about this very interesting plant is your goal, please consider joining the Ontario Hosta Society.
https://www.ontariohostasociety.com/
Tri-State Hosta Society
Home, Gardening, Associations, Perennials - Tri-State Hosta Society. Offers photographs, club membership information,and schedule.
https://www.tristatehosta.org/
Russ O'Harra Hosta Society
Russ O'Harra Hosta Society was formed to promotethe knowledge and interest of the genus Hosta. The Society honors Russ O'Harra prominent central Iowa hybridizer and grower. Hosta Horizons is an informative newsletter published by ROHS.
https://www.rohs.org/
Greater Ozarks Hosta Society
Home, Gardening, Associations, Perennials - Greater Ozarks Hosta Society. Features photographs, event calendar and newsletter.
https://gohs.org/
Clematis.org - The World's #1 Clematis Resource!
Home, Gardening, Associations, Perennials - The American Clematis Society. Founded in 1996 for the purpose of encouraging and promoting the development and improvement of Clematis.
https://clematis.org/
American Hibiscus Society
Home, Gardening, Associations, Perennials - American Hibiscus Society. Includes membership information, publications, chapter locations, events, and links.
http://www.americanhibiscus.org/
MIS - The Median Iris Society
Home, Gardening, Associations, Perennials - Median Iris Society. Devoted to promoting interest in and the development of median irises.
http://www.medianiris.com/