Chestnut Oak
Quercus montana · Deciduous broadleaf hardwood
Plant Family
Fagaceae
Tree Category
Shade Tree, Forest Tree, Native
Variety / Cultivar
Species type (no specific named cultivar identified)
Hardiness Zones
Thrives in USDA Hardiness Zones 4 through 8, demonstrating strong tolerance to cold winters and hot, dry summers.
About This Tree
A medium to large deciduous tree featuring a rounded to irregular crown, sturdy branches, and a distinctly ridged, dark bark resembling blocky charcoal. Known for thriving in dry, rocky soils where other trees struggle.
Leaf Characteristics
Simple, alternate leaves, oblong to obovate in shape, 4 to 8 inches long, with distinctive rounded or coarsely toothed margins resembling a chestnut leaf. Medium to dark green in summer, turning yellow to yellowish-brown in autumn.
Bark Characteristics
Dark brown to nearly black bark, deeply furrowed with thick, rounded ridges that form a blocky or ridged pattern resembling broken plates, becoming very rugged with age.
Growing Information
Origin Region
Eastern North America, native to the Appalachian region and extending from Maine to Georgia, well-adapted to rocky ridges and uplands.
Growing Season
Spring leaf-out in April, flowering in mid-spring, acorn development through summer, dropping acorns in autumn, and entering dormancy in late fall.
Sunlight & Water Needs
Requires full sun for optimal growth. Highly drought-tolerant once established and prefers well-drained rocky or sandy soils; does not tolerate waterlogged conditions.
Mature Size
Mature height of 50 to 70 feet with a comparable spread. Slow to moderate growth rate, with a long lifespan often exceeding 200 years.
Special Characteristics
Exceptional drought tolerance and ability to grow in poor, rocky upland soils. Provides hard, durable timber often used for railroad ties and construction, and puts on a modest yellowish-brown fall display.
Wildlife & Ecology
Produces large sweet acorns that are highly sought after by white-tailed deer, wild turkeys, squirrels, jays, and various small mammals. Provides crucial canopy cover and nesting sites for birds in rocky forest ecosystems.