Looking for a plant?
Our interactive map, the Arboretum Botanical Explorer (or “ABE”) is the perfect tool for the job.
Find plants, benches, and more from the comfort of your home computer.
Go to ABE
Welcome to the U.S. National Arboretum
The Arboretum grounds are open every day of the year except December 25 from 8:00 a.m. to 5:00 p.m. The National Bonsai & Penjing Museum is open from 10:00 a.m. to 4:00 p.m. daily except for federal holidays November through February, so plan to visit this collection first if you visit late in the day. Please see our Hours and Directions page for additional information. We look forward to seeing you at the National Arboretum, where science meets beauty.
Agents of Discovery Mission Now Available
Now you can learn about trees and nature while playing a fun game on your smartphone on your next visit to the National Arboretum!
Read moreWhat's New
R Street Entrance Closure
The R Street Entrance will be CLOSED after 2:00 pm. Monday through Friday. Bicycles, pedestrians, official visitors, volunteers, tours, and contractors will be allowed to enter through R Street between 2:00 pm and 5:00 pm Monday...
Have you tried our mobile app?
The U.S. National Arboretum mobile app will help guests navigate the vast grounds of the Arboretum via a digital map. A search feature will allow visitors to explore the collections and other features, learn about available visitor...
Reports on current USNA activities to the Stakeholders of the U.S. National Arboretum
The U. S. National Arboretum interacts directly with and serves many stakeholder organizations. These are typically national organizations, professional societies, and botanical and horticulturally-oriented lay organizations....