American Horticultural Society
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The American Horticultural Society is a nonprofit organization that promotes excellence in American horticulture.
The society was first established in 1922. Today's organization has merged three earlier groups: the (original) American Horticultural Society, the National Horticultural Society, and the American Horticultural Council.
Society headquarters are located at River Farm (25 acres), one of George Washington's original five farms, located on the Potomac River in Alexandria, Virginia.