Open daily 10 a.m. to 5:30 p.m.
Admission is always free!
2 Massachusetts Ave., N.E.
Washington, DC 20002
The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.
George Washington, Thomas Jefferson, and James Madison all envisioned a national botanic garden, which became a reality in 1820. The United States Botanic Garden as known today, located southwest of the Capitol, opened its doors in 1933.