Bur Oak

About Bur Oak

Bur Oak (Quercus macrocarpa) is the quintessential tree of the American Midwest, known for its massive size, rugged character, and incredible longevity. This slow-growing giant can reach heights of 70 to 80 feet or more (occasionally over 100 feet), developing a wide, spreading crown and thick, deeply furrowed, fire-resistant bark. Its large, leathery leaves are uniquely lobed and turn a muted yellow or brown in the fall. The tree is most famous for its enormous acorns, which are encased in a distinctive, fringed, mossy-looking cap that gives it the name 'Mossycup Oak.' Native to a vast range across North America, it is a keystone species in oak savannas and prairies. The ecological value of a single Bur Oak is immense, providing nesting sites for large birds of prey and supporting an incredible diversity of insects and mammals. It is highly adaptable to various soil types, including heavy clay and alkaline soils, and thrives in full sun. While it requires space to reach its full potential, a Bur Oak is a true legacy tree that will provide shade and habitat for generations to come.