Tree Information

Common Name: osage-orange

Scientific Name: Maclura pomifera

Native/Naturalized: Native to North America

Status: alive

National Champion: yes

Virginia Champion: yes

Circumference: 333 in.

Height: 58 ft.

Crown: 91 ft.

Points: 414

Date Last Measured: 2009

Last Measured by: James Powell

Date First Measured: 2009

Comments: Became co-national-champ again in 2017 because revised measurement technique of Charlotte County tree reduced its score. The tree, a male specimen estimated by arborists to be at least 200 years old, is located on land that was once owned by President George Washington. Washington bequeathed the property, which he knew as Walnut Tree Farm, to his overseer Tobias Lear, who managed the property until his death in 1816. The property was subdivided and changed hands several times over the next century. In 1919, 25 acres that included the Osage orange tree were purchased by Malcolm Matheson Jr., who created a 'gentleman's estate.' In 1973, Matheson sold the property to philanthropist Enid Haupt, who donated it to the American Horticultural Society (AHS). The AHS established their national headquarters on the site and have carefully maintained and upgraded the property and cared for the historic trees on site. The osage orange has such a large canopy that it has created a microclimate underneath that is markedly cooler than surrounding areas.

David Ellis 2005

Location of Tree

Tree is located in: Fairfax

State Map

Land Owner: American Horticultural Society

GPS Coordinates: 38.74252, -77.0448

Owner Email:

Directions: River Farm serves as the headquarters of the American Horticultural Society. Situated on 25 acres of landscaped lawns and gardens, it is one of the Washington, D.C. area's premier gardening destinations.

Owner Address: 7931 East Boulevard Drive

Alexandria VA,22308

Owner Phone: 703-768-5700

Contact Information

Contact Name: David J. Ellis

Contact Email:

Contact Info: Arborist who measured the tree is James Powell, The Care of Trees, 6748 Gravel Avenue, Alexandria VA,22310; Email: Phone: (703) 922-8733


Original Nominator(s): David J. Ellis

Additional Information

I.D. Fact Sheet

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