Kousa Dogwood
Cornus kousa · Deciduous, Broadleaf, Hardwood
Plant Family
Cornaceae
Tree Category
Ornamental, Flowering Tree
Variety / Cultivar
Standard species (undetermined variety)
Hardiness Zones
USDA Zones 5-8; adaptable to various temperate climates but sensitive to extreme heat without moisture.
About This Tree
A small to medium-sized deciduous tree reaching a vase-shaped form in youth and a more rounded, layered horizontal habit at maturity. Known for its showy pointed bracts which transition from green to white, and later, edible raspberry-like fruit.
Leaf Characteristics
Simple, opposite leaves, 2-4 inches long, ovate to elliptic shape with acuminate tips and entire/wavy margins. Deep green during summer, turning reddish-purple or scarlet in autumn.
Bark Characteristics
Smooth in youth, becoming exfoliating (peeling) with age to reveal a camouflage-like pattern of tan, brown, and grey patches.
Growing Information
Origin Region
Native to East Asia (Japan, Korea, China); well-adapted to temperate North America and Europe.
Growing Season
Leafs out in spring; flowers in late spring/early summer (later than C. florida); fruits ripen in late summer; enters dormancy in late autumn after vibrant fall color.
Sunlight & Water Needs
Full sun to partial shade; prefers moist, well-drained, acidic soil. Moderate drought tolerance once established.
Mature Size
15-30 feet in height with a similar spread. Growth rate is slow to moderate. Lifespan typically 50-150 years.
Special Characteristics
Excellent resistance to Dogwood Anthracnose and powdery mildew compared to American Dogwood. Noted for late-season blooms and attractive winter bark.
Wildlife & Ecology
Fruits are eaten by birds and squirrels; flowers provide nectar for pollinators. The dense canopy offers nesting sites for songbirds; non-invasive role in most garden ecosystems.