Welcome to the U.S. National Arboretum

General Information

APRIL 17 R STREET GATE CLOSURE: In order to reinstall the historic iron gate, the R Street entrance will be closed to all vehicle and pedestrian traffic on Wednesday, April 17, 2024. All vehicle traffic must enter and exit via the New York Ave gate. There will be no pedestrian access to the Arboretum while work is ongoing. We apologize for the inconvenience as we work to restore our historic fences and gates.

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.


Beginning Wednesday, March 27 through mid-May, the Arboretum will implement a temporary traffic plan that impacts traffic flow and parking throughout the grounds. CLICK HERE for details.

Explore beyond the Tidal Basin!

The Washington Post’s verdict is in: the Arboretum is the place to see flowering cherries this spring! Explore the collection with our self-guided tour.

Learn more

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

Subscribe to the newsletter!

FONA Field Notes is the free weekly newsletter of the Friends of the National Arboretum. Sign up to stay in the know about everything happening at the Arboretum!

Proposed Canopy Trail

The USNA has prepared an Environmental Assessment (EA) to analyze the potential impacts associated with the proposed construction and operation of a canopy trail attraction.

Read more here!