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.HistoryThe Columbian Institute for the Promotion of Arts and Sciences in Washington, D.C., first
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.HistoryThe Columbian Institute for the Promotion of Arts and Sciences in Washington, D.C., first
