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.

NOTICE: National Bonsai & Penjing Museum: The exhibition Cultivated Stones: Chinese Scholars’ Rocks from the Kemin Hu Collection will be closed on Thursday, December 1 from 10 a.m. until 2 p.m.

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 caught very early, giving staff time to implement measures to prevent spread. The Boxwood Collection (and the Perennial Collections that are in the same location) will be closed to the public until Summer 2023 to prevent spread within the collection and to other boxwood on the property. Please email ARSPress@usda.gov for more information.

Apply to be a 2023 Intern!

​The U.S. National Arboretum is now accepting applications for its 2023 interns in horticulture and research. Positions fill quickly!

Learn more!

Agents of Discovery Mission Now Available!

Learn about trees and nature while playing a fun game on your smartphone on your next visit to the National Arboretum!

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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