Arboretum open late!
The Arboretum grounds will stay open until 8:00 PM every day from June 1st through August 30th. Last admittance onto the grounds is at 7:30 PM. More information
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
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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!
What's New
Extended Summer Hours! 8 am – 8 pm
Feels Like Summer!
Thanks to Friends of the National Arboretum (FONA) and the generosity of its supporters, the U.S. National Arboretum will stay open until 8 pm from June 1st through August 30th!* Visit FONA’s website for the...
Proposed Canopy Trail
The U.S. Department of Agriculture, Agricultural Research Service, U.S. National Arboretum (USNA) prepared an Environmental Assessment (EA) to analyze the potential impacts associated with the proposed construction and operation of...
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...