Mongolian Oak is a medium to large deciduous tree native to the forested regions of East Asia, stretching from Japan and Siberia through Manchuria, Korea, and Mongolia. This hardy species thrives in USDA zones 5 through 8, growing 30 to 60 feet tall (sometimes reaching 90 feet) with a distinctive open crown and deeply lobed leaves that display 7 to 10 broad coarse teeth along each margin. It's a low-maintenance shade and street tree that tolerates clay soil and drought conditions while asking only for full sun and moderate water.
Full Sun
Moderate
5-8
720in H x 660in W
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Moderate
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The Mongolian Oak's tapered obovate leaves are distinctly architectural, with their characteristic ear-like basal lobes and coarse marginal teeth creating a bold texture in the landscape. Its open crown habit and proven hardiness through severe northern winters make it exceptionally reliable in challenging climates. The tree performs admirably in sandy loams and tolerates partial shade, though it reaches its fullest potential in rich, moist, well-drained soil with full sun exposure.
Mongolian Oak serves as a shade tree and street tree, valued for its substantial size, open crown structure, and ability to provide filtered light in landscapes and urban plantings. Its drought tolerance and low maintenance requirements make it particularly suited to challenging growing conditions where many ornamental trees struggle.
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“Quercus mongolica evolved across the vast forested landscapes of East Asia, naturally distributed from Japan through Manchuria, central and northern China, Korea, eastern Mongolia, and into Siberia. This wide native range reflects its deep adaptation to temperate continental climates and the ecological requirements of old-growth Asian forests. Its presence across such diverse regions underscores its value as a species that anchored forest communities across an enormous geographic area for millennia.”