Sprawling grounds featuring exotic flora plus conservatory, rare plants gallery & butterfly garden. The United States Botanic Garden is a botanic garden on the grounds of the United States Capitol in Washington, D.C., near Garfield Circle. The Botanic Garden is supervised by the Congress through the Architect of the Capitol, who is responsible for maintaining the grounds of the United States Capitol. The USBG is open every day of the year, including federal holidays. It is the oldest continually operating botanic garden in the United States
Steeped in history, rich with tradition, the United States Botanic Garden (USBG) is a living plant museum that informs visitors about the importance, and often irreplaceable value, of plants to the well-being of humans and to earth’s fragile ecosystems. More than 200 years ago, George Washington had a vision for the capital city of the United States that included a botanic garden that would demonstrate and promote the importance of plants to the young nation. Established by the U.S. Congress in 1820, the U.S. Botanic Garden is the oldest continuously operating botanic garden in the United States. Since 1934, it has been administered through the Architect of the Capitol.
The Garden has been recognized as a museum and is accredited by the American Alliance of Museums. This accreditation is a widely recognized seal of approval that recognizes a museum’s commitment to excellence, accountability, high professional standards and continued institutional improvement.
Usual hours are open 7:30 a.m. to 5 p.m. daily, including all weekends and holidays. It is adjacent to the Conservatory, with entrances from Independence Avenue, from Maryland Avenue (at 3rd Street) and from the Conservatory Terrace. This gated outdoor garden has extended evening hours staying open until 7 p.m. from April 1 to September 15 each year.