2 Research Ct.
Rockville, MD 20850-3212
Phone: (301) 948-8000
Fax: (301) 948-7406
United States National Arboretum
Fr to Mo from 08:00 AM to 05:00 PMBest known for its vast collection of azaleas, (Washington's favorite porch-flower), this 444-acre (180-hectare) garden park has much else to offer. Fountains, pools and open space separate a series of focused gardens at United States National Arboretum. The National Bonsai Collection, a gift from Japan, is a fascinating exhibit of tiny trees. Other notable sections are the aquatic garden (filled with lotuses of many varieties) and the National Herb Garden.