American Horticultural Society

The American Horticultural Society (AHS), founded in 1922, is an educational organization that recognizes and promotes excellence in American horticulture. It is one of the oldest and most prestigious gardening organizations in the United States. AHS is known for its educational programs and the dissemination of horticultural information. AHS' mission is to open the eyes of all Americans to the vital connection between people and plants, to inspire all Americans to become responsible caretakers of the Earth, to celebrate America's diversity through the art and science of horticulture; and to lead this effort by sharing the Society's unique national resources with all Americans.

http://www.ahsgardening.org/