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. The American Hydrangea Society was founded by Penny McHenry in 1994 in Atlanta, GA.

Her story of how she started this society is a simple one:

"In 1975, I was given a gift of a blue hydrangea. It was love at first sight. As I explored the genus, my passion grew. A few years later, I learned I was not alone; many gardeners share my addiction. By 1994, I was convinced that the world's perfect shrub deserved a plant society to celebrate and explore its versatility."

Penny McHenry
Founder of the American Hydrangea Society
1925-2006