English Oak (also known as Common Oak or Pedunculate Oak)
Quercus robur · Deciduous, Broadleaf, Hardwood
Plant Family
Fagaceae
Tree Category
Shade Tree, Forest Tree, Ornamental
Variety / Cultivar
Wild type / Standard species ( Quercus robur )
Hardiness Zones
USDA Hardiness Zones 4 through 8. Cold hardy down to -30°F (-34°C).
About This Tree
A young seedling pictured showing classic oak foliage. At maturity, it forms a massive, majestic tree with a broad, rounded, spreading crown, sturdy horizontal branching, dense foliage, and thick rough bark.
Leaf Characteristics
Alternately arranged, simple leaves with deep rounded lobes and very short petioles (leaf stalks). Leaves have ear-like auricles at the base. Color is light to mid-green, turning reddish-brown or yellow-brown in autumn.
Bark Characteristics
On this young sapling, the stem bark is thin, smooth, and greenish-brown. Mature trees develop dark gray-brown bark that is deeply furrowed with thick, rugged vertical ridges.
Growing Information
Origin Region
Native to Europe, Western Asia, and Northern Africa; widely planted in temperate regions worldwide.
Growing Season
Leafs out in mid-to-late spring (April-May), flowers concurrently with leaf emergence, produces acorns in late summer/autumn, and enters winter dormancy in late autumn after turning yellow-brown.
Sunlight & Water Needs
Requires Full Sun to Partial Sun. Prefers well-drained, moist soils but demonstrates good adaptability once established. Needs regular watering as a sapling.
Mature Size
Reaches a mature height of 60 to 100+ feet (18 to 30 meters) with a spread of 60 to 80+ feet. Growth rate is slow to moderate (12-24 inches per year). Lifespan can exceed 500 to 1,000 years.
Special Characteristics
Highly valued for durable hardwood timber, long lifespan, resistance to wind throw once established, and rich cultural/historical symbolism across Europe.
Wildlife & Ecology
Supports hundreds of insect species, including caterpillars, gall wasps, and beetles. Acorns provide vital autumn/winter food for blue jays, squirrels, deer, and wild boars. Dense canopy offers prime nesting habitat for birds.