Cornus kousa – Kousa Dogwood, Disease-Resistant Asian Species

Kousa Dogwood (Cornus kousa)

Cornus kousa (KOR-nus KOO-sah), native to Korea and Japan, makes an excellent landscape tree with a long season of interest. Beginning in early summer, white bracts in sets of four (sometimes with pink tinges) surround tiny green flowers. These are followed by reddish fruit resembling raspberries that attract birds. Autumn color is a deep reddish purple. Resistant to dogwood anthracnose and has good cold hardiness. Can be grown as a tree or large multi-stemmed shrub.

Noteworthy Characteristics

• Beautiful white bracts in spring followed by red fruits and good autumn color
• Disease resistant
• Fruit attracts birds

Growing Conditions & Care

Shows best in full sun or part shade, and fertile, moist but well-drained, sandy soil.

Propagation

Sow seed in a seedbed in autumn, or stratify and sow in spring. Root greenwood cuttings in summer.

Potential Problems

Nothing serious. Resistant to dogwood anthracnose affecting other Cornus species. Better cold hardiness.

Quick Reference

• Height: 15–30 ft.
• Spread: 10–15 ft.
• Light: Full sun to part shade
• Moisture: Adaptable
• Maintenance: Moderate
• Bloom Time: Early summer to summer
• Flower Color: Green, White
• Uses: Beds, borders, specimen, woodland gardens
• Type: Tree