The United States Botanic Garden is rooted in the nation's heritage. During the late 18th century, George Washington, Thomas Jefferson and James Madison shared the dream of a national botanic garden and were instrumental in establishing one on the National Mall in 1820. George Washington's letter where he wrote in support of a botanic garden in the new federal city is currently on display in the Library of Congress.
The institution traces its beginning to 1816, when the constitution of the Columbian Institute for the Promotion of Arts and Sciences in Washington, D.C., proposed the creation of a botanic garden to collect, grow and distribute plants of this and other countries that might contribute to the welfare of the American people.
On May 8, 1820, the U.S. Congress signed a charter for land for the garden to the west of the Capitol Grounds, from First Street to Third Street between Pennsylvania and Maryland Avenues. This facility functioned until 1837, shortly after the organization stopped holding meetings.
In 1842, the idea of a national botanic garden was reestablished when the United States Exploring Expedition to the South Seas (the Wilkes Expedition) brought a collection of living plants from around the globe to Washington, D.C. These form the first permanent collection of plants for the U.S. Botanic Garden, and four plants in the Garden today date back to this expedition. The plants were kept in a specially constructed greenhouse behind the Old Patent Office Building while a new Conservatory for the Garden was constructed between 1842-1850.
The Victorian Conservatory opened to the public in 1850 and the U.S. Botanic Garden has been in continuous operation and open to the public this date.
The Garden moved to its present location in 1933, a complex located along the north and south sides of Independence Avenue bordered by First Street and Third Streets, SW. The Garden includes the Conservatory, which was renovated from 1997-2001; the National Garden, which opened in 2006; and Bartholdi Park, which was created in 1932. A plant production and support facility opened in Anacostia in 1993, which includes 85,000 square feet under glass divided into 34 greenhouse bays in addition to maintenance shops.
The U.S. Botanic Garden was formally placed under the jurisdiction of the Joint Committee on the Library of Congress in 1856 and has been administered through the Architect of the Capitol since 1934. The Architect of the Capitol has served as Acting Director of the U.S. Botanic Garden and is responsible for the maintenance and operation of the Garden and for any construction, changes or improvements made.
The U.S. Botanic Garden's First Conservatory This 1858 photograph shows the Conservatory constructed eight years earlier (in 1850). The accompanying grounds occupied 10 acres extending from First Street to Third Street between Pennsylvania and Maryland Avenues SW. Architect of the Capitol
The Conservatory, expanded in 1867, consisted of a central dome and two wings 300 feet long. This photograph also shows where the Bartholdi Fountain stood to the north of the first Conservatory from 1877 until 1927. Architect of the Capitol
This 1912 photograph shows some of the outside gardens and the central dome of the Palm House of the Victorian Conservatory. Architect of the Capitol