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District of Columbia Garden Websites

Arboreta and Gardens

American University Arboretum and Public Gardens
4400 Massachusetts Avenue NW, Washington, DC 20016
The landscaping recently met national requirements for the campus to be declared an arboretum. Note: Link is to the main campus website.
Constitution Gardens
Washington, DC
50 acres park maintained by the National Park Service
Dumbarton Oaks
1703 32nd Street NW, Washington, DC 20007
10 acres of formal gardens. Gardens are closed Mondays.
Hillwood Museum & Gardens
4155 Linnean Avenue, NW, Washington, DC 20008
Marjorie Merriweather Post's Washington, D.C. estate. Reservvations required.
Hirshhorn Museum and Sculpture Garden
Washington, DC
Kenilworth Park and Aquatic Gardens
301 7th St SW, Washington, DC 20407
"The only National Park Service site devoted to the propagation and display of aquatic plants." National Register of Historic Places.
Tudor Place
1644 31st Street NW, Washington, DC 20007
Historic house and garden. National Historic Landmark. Admission.
U.S. Botanic Garden
Washington, DC 20024
U.S. National Arboretum
3501 New York Avenue NE, Washington, DC 20002
Washington National Cathedral Gardens
Wisconsin & Massachusetts Avenue NW, Washington, DC 20016