Chestnut Oak
Quercus montana · Deciduous, Broadleaf, Hardwood
Plant Family
Fagaceae
Tree Category
Shade Tree, Forest Tree, Timber Tree
Variety / Cultivar
None specified (Wild type)
Hardiness Zones
USDA Hardiness Zones 4 through 8.
About This Tree
A medium-sized forest tree characterized by a massive, spreading crown when open-grown or a straight, clear trunk in forest stands. Known for its remarkable ability to grow on dry, rocky ridges where other trees struggle. It features heavy branches and a dark, deeply furrowed bark.
Leaf Characteristics
Simple, alternate leaves, 4-9 inches long. They are obovate with coarsely crenate (rounded) margins resembling Chestnut tree leaves. Dark yellow-green above and paler, slightly pubescent underneath. Turns yellow-orange to yellowish-brown in autumn.
Bark Characteristics
Extremely distinctive; dark gray to brownish-black and very deeply furrowed into firm, broad, v-shaped ridges. The thick bark provides excellent protection against fire and is a primary identifier for the species.
Growing Information
Origin Region
Eastern United States, specifically the Appalachian Mountain region from Maine to Alabama
Growing Season
Flowering occurs in late spring (April-May) as leaves emerge; fruits (acorns) ripen in autumn (September-October); enters dormancy in late fall.
Sunlight & Water Needs
Full sun preferred; highly drought-tolerant once established. Prefers well-drained, acidic, rocky or sandy soils; does not tolerate poorly drained sites.
Mature Size
Mature height of 60-70 feet with a similar spread. Growth rate is slow to moderate. Can live up to 300 years. Trunk diameter can reach 2-3 feet.
Special Characteristics
High tannin content in bark historically used for leather tanning; timber is heavy, hard, and durable, often marketed as 'white oak' in the lumber industry. Excellent salt and drought tolerance.
Wildlife & Ecology
Produces large, sweet acorns that are a vital food source for white-tailed deer, wild turkeys, black bears, and various rodents. Provides essential nesting sites for songbirds and serves as a larval host for Plusieurs species of butterflies and moths.