Chestnut Oak
Quercus montana (formerly Quercus prinus) · Deciduous, Broadleaf, Hardwood
Plant Family
Fagaceae
Tree Category
Shade Tree, Forest Tree, Timber Tree
Variety / Cultivar
Not applicable (wild/straight species)
Hardiness Zones
USDA Zones 4 through 8.
About This Tree
A medium-sized canopy tree characterized by an irregular, spreading crown. In forest settings, it develops a long, straight trunk. It is known for its extreme ruggedness and ability to grow on dry, rocky ridges where other oaks struggle.
Leaf Characteristics
Leaves are simple, alternate, and obovate (teardrop-shaped), 4-9 inches long. They lack the deep lobes of other oaks and instead have 10-15 rounded teeth (crenate) per side. They are dark yellowish-green and leathery, turning yellow-brown or dull orange in autumn.
Bark Characteristics
Most distinctive feature: very dark gray to black, exceptionally thick, and deeply furrowed into hard, rugged, V-shaped ridges that resemble alligator skin or mountainous terrain.
Growing Information
Origin Region
Eastern United States, specifically the Appalachian region and from Maine to Alabama.
Growing Season
Bud break occurs in mid-to-late spring; flowering (catkins) occurs in May; acorns ripen in September–October; leaves drop in late autumn.
Sunlight & Water Needs
Requires full sun to partial shade. Notably drought-tolerant once established; prefers well-drained, acidic soils and performs well on poor, rocky sites.
Mature Size
Typically reaches 60-70 feet in height with a similar spread. Growth rate is slow to moderate. Lifespan can exceed 300 years.
Special Characteristics
Exceptional resistance to dry, rocky conditions. High timber value for heavy construction and railroad ties. The bark was historically harvested for its high tannin content for use in leather tanning.
Wildlife & Ecology
Produces large, sweet acorns (for an oak) that are a vital food source for white-tailed deer, wild turkeys, black bears, and squirrels. Provides nesting habitat for various forest birds.