Botanic Garden, United States, in Washington, D.C., exhibits thousands of plants, including numerous rare species and varieties. The collection includes products of the United States and other countries. The garden is located on the southwest side of Capitol Hill.
As a public service, the garden identifies plants and recommends a method of growing them. It also presents special displays, courses in horticulture, and guided tours of the conservatory.
A private organization founded the botanic garden in 1820. In 1842, the government assumed control of the garden to display botanical collections assembled by government expeditions. The Congressional Joint Committee on the Library has supervised the United States Botanic Garden since 1856.
