American Ivy Society, Inc: The American Ivy Society is a non-profit organization dedicated to preserving the genus Hedera through education and promotion. AIS members are nurseryman, horticulturists, botanist, and plant enthusiasts, professionals and non-professionals who share a passion for ivies of the world.
The American Horticultural Society: The American Horticultural Society (AHS) is one of the oldest national gardening organizations in the country.
The American Hibiscus Society: The purpose of the American Hibiscus Society, one of the larger specialized plant societies, is to encourage and promote the development and improvement of hibiscus and to collect, record and pass on information concerning hibiscus. It is a non-profit organization with headquarters in Venice, Florida.
The American Iris Society: The American Iris Society is a nonprofit institution incorporated February 2, 1927, in the County of Philadelphia, State of Pennsylvania. By the terms of the Charter, the Corporation has no stockholders and exists for the sole purpose of promoting the culture and improvement of the Iris.
The American Rhododendron Society: The American Rhododendron Society is a non-profit organization whose purpose is to encourage interest in and to disseminate information about the genus Rhododendron.
The American Rose Society: Here at the American Rose Society, we understand how important roses are. If you want to know more about choosing roses, growing roses, pruning roses, the American Rose Society and how to become a member or how to find out about an upcoming rose show, you've come to the right place.
International Society of Arboriculture: The International Society of Arboriculture is a worldwide professional organization dedicated to fostering a greater appreciation for trees and to promoting research, technology, and the professional practice of arboriculture.
Midwest Fruit Explorers: MidFEx, short for Midwest Fruit Explorers, is a non-profit organization of amateur backyard fruit growing enthusiasts. Most of our members live in the counties surrounding Chicago.
Midwest Pond & Koi Society: MPKS is a not for profit, hobbyist organization whose members share a common interest in koi (Japanese colored carp), goldfish, water gardens and backyard ponds.