White Oak
Quercus alba · Deciduous, Broadleaf, Hardwood
Plant Family
Fagaceae
Tree Category
Shade Tree, Forest Tree, Timber Tree
Variety / Cultivar
Wild type (No specific cultivated variety identified from log cross-section)
Hardiness Zones
Thrives in USDA Hardiness Zones 3 through 9, showing high adaptability to diverse continental climate conditions.
About This Tree
Large, majestic deciduous shade tree with a massive trunk, widespreading branches forming a broad, rounded crown at maturity. The cross-section clearly shows ring-porous wood grain, visible growth rings, and characteristic central heartwood decay or structural inclusion common in mature specimens.
Leaf Characteristics
Alternate, simple leaves, typically 4 to 7 inches long with 7 to 9 rounded lobes and deep sinuses. Dark green and smooth on top, paler underneath, turning a rich red to purplish-brown in autumn.
Bark Characteristics
Light gray to whitish bark, shallowly furrowed into narrow, scaly vertical blocks or plates, becoming deeply ridged and rugged on very old trunks.
Growing Information
Origin Region
Eastern and central North America, well-adapted to temperate climates with varying soil conditions.
Growing Season
Deciduous growth cycle with leaves emerging in spring, green summer foliage, brilliant red to brown autumn color, dropping leaves in late autumn and entering winter dormancy.
Sunlight & Water Needs
Prefers full sun, requiring at least 6 hours of direct sunlight daily. Moderate watering needs when young, highly drought-tolerant once established, preferring well-drained loamy, clay, or sandy soils.
Mature Size
Expected mature height of 50 to 80 feet, with an equal or greater spread. Slow to moderate growth rate, exceptionally long-lived, often exceeding 200 to 300 years.
Special Characteristics
Highly valued for strong, dense, durable timber used in furniture, flooring, and shipbuilding. Exhibits good drought tolerance and high ecological resilience once mature.
Wildlife & Ecology
Exceptional ecological value, producing acorns favored by numerous birds, deer, squirrels, and small mammals. Provides crucial nesting habitat and supports hundreds of caterpillar species critical to the food web.