United States National Arboretum Garden, Present Day

National Herb Garden at the United States National Arboretum in Washington The Arboretum is listed on the National Register of Historic Places.
National Arboretum Historic District: The National Arboretum celebrates the diverse plant life of the United States with a 446-acre center for nature research and preservation in the nation’s capital.
Although Congress passed a law authorizing the Secretary of Agriculture to establish a national arboretum in DC in 1927, more than three decades passed before the U.S. National Arboretum was open to…