The United States Botanic Garden

US Botanic Garden100 Maryland Avenue, SW
Washington, DC 20002

The United States Botanic Garden (USBG) is a botanic garden on the grounds of the United States Capitol in Washington, D.C it is supervised by the Congress through the Architect of the Capitol, who is responsible for maintaining the grounds of the United States Capitol.  It is the oldest continually-operating botanic garden in the United States. The USBG proper consists of three locations: the Conservatory, Bartholdi Park, and the offsite Production Facility.  The Conservatory is a conservatory housed in a Lord & Burnham greenhouse. It is divided into separate rooms, each simulating a different habitat: 

Open: The USBG is open every day of the year, including federal holidays from 10 a.m. to 5 p.m..  Admission: Free  Metro: Capitol South 

Related Links: United States Botanic Garden