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Welcome to the U.S. National Arboretum
General Information
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.
Interactive Map
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 ABE
What's New
NOTICE: Boxwood and Perennial Collections Closed through Summer 2023
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...
U.S. National Arboretum Offers Solution to Hemlock Woolly Adelgid Pest
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...
Explore America’s Stately Treasures!
Do you know your state tree? Do you know why your state tree is what it is?
Every state and the District of Columbia has selected an official state tree, and these trees say something about the states they represent, the people who...