The American Hydrangea Society was formed in 1994 for people who love hydrangeas and want to "study and learn about the genus Hydrangea, its species and cultivars, as well as its culture, habits, hardiness, and performance." A fascination with the hydrangea in all of its forms is the common thread that unites the members of the AHS.

Membership in the AHS entitles you to a newsletter containing educational information from meetings, announcements on hydrangea events, and information about books and articles that deal with hydrangeas.