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The grounds of the U.S. National Arboretum are open from 8 a.m. to 5 p.m. every day of the year except for Christmas Day. The National Bonsai & Penjing Museum is open 10 a.m. to 4 p.m. daily except for federal holidays from November through February. Admission to the grounds and museum is free and no tickets are needed.
Click here to sign up for our mailing list. You’ll receive news from the National Arboretum, including about upcoming programs and events.
Looking for a plant? Try our interactive map and living plant database search, and plant browser, the Arboretum Botanical Explorer (ABE), designed for large-screened devices.
Go to ABEJoin us at the Lahr Native Plants Symposium & Sale on March 23rd! One of the Arboretum’s signature events returns for its 37th year.
Learn MoreBeyond the Tidal Basin explores the remarkable beauty of ornamental cherry trees as well as the National Arboretum’s long history with them. This self-guided tour visits 40 sites spread out across 450 acres. Each tree is marked...
In early August 2022, USDA-ARS discovered Boxwood blight on a small number of plants in the National Boxwood Collection at the U.S. National Arboretum (USNA). Because the collection has been frequently monitored, the disease was...
Title: U.S. National Arboretum Offers Solution to Hemlock Woolly Adelgid Pest
Hemlocks, Tsuga species, are evergreen trees that can be found in forested ecosystems and in landscape plantings. They are in the pine family and often...