Family: Cornaceae
Zone: 5 to 8
Height: 15' to 30'
Spread: 15' to 30'
Bloom: May to June
Leaf: Pointed oval leaves (4" long) that emerge medium to dark green and develop reddish-purple to burgundy fall color
Flower: Small yellowish-green flower clusters surrounded by four showy white to blush-pink bracts (3–6" across)
Fruit: Rounded pink to red aggregate fruit (about 1" diameter) with yellow-orange flesh. Technically edible, though often better appreciated by birds and wildlife
Sun: Full Sun to Part Shade
Water: Medium
Soil: Organically rich, medium moisture, acidic to neutral, well-drained soils
Maintenance: Low
Use: Specimen tree, woodland garden, mixed border, patio planting, bird garden, understory tree, or naturalized setting
Tolerant: Mild deer resistance, drought tolerant once established, sandy loam soils, cold hardy, and notably resistant to Dogwood Anthracnose compared to native flowering dogwoods
Problems: While more durable than Cornus florida, hot afternoon sun combined with dry soil may lead to leaf scorch. Poor drainage and waterlogged soils can lead to root decline. Potential insect or disease issues include calico scale, dogwood borer, dogwood sawfly, Japanese maple scale, leafhoppers, and oyster shell scale.
Cornus kousa is one of the best four-season ornamental trees available for Mid-Atlantic landscapes. Unlike many flowering trees that peak for only a few weeks, this tree offers something in every season. Late spring brings large star-like blooms that seem to float above the branches. Summer introduces attractive layered branching and unusual berry-sized fruit. Fall delivers deep burgundy foliage, while winter exposes beautifully exfoliating bark in shades of tan and gray. Their moderate mature size allows them to fit comfortably into most residential yards without overwhelming the space.
History
Cornus Kousa is native to Japan, Korea, and parts of China, where it has been cultivated and admired for centuries. It was introduced to the United States during the late 1800s as plant explorers and botanical collectors brought ornamental trees from Asia to American gardens and arboretums.
Interest in the species grew rapidly because it flowered later than native dogwoods and showed improved resistance to many of the diseases affecting American dogwood populations. Over time, breeders and nurseries began selecting improved cultivars for larger flowers, stronger branching habits, heavier blooming, and unique foliage characteristics.
Today, Cornus Kousa has become one of the most widely planted ornamental trees in the United States, especially in regions where native dogwoods struggle with anthracnose or heat stress.
Usage
Cornus Kousa is extremely versatile in the landscape. Its moderate size and elegant branching structure make it ideal as a specimen tree near patios, entryways, or front lawns where its seasonal interest can be fully appreciated.
It also performs beautifully as an understory tree planted beneath larger shade trees or along woodland edges. Because of its horizontal branching and layered appearance, it works especially well in Japanese gardens, cottage gardens, and naturalized landscapes.
The fruit attracts birds and wildlife, making it an excellent addition to pollinator and bird-friendly gardens. In commercial or residential settings, Cornus Kousa is often used to soften corners of buildings, frame walkways, or create focal points without requiring excessive maintenance.
Maintenance
Cornus Kousa is considered a low-maintenance ornamental tree once established. During the first few years after planting, regular watering is important to help develop a strong root system. Applying mulch around the base helps conserve soil moisture and regulate temperature, but mulch should be kept away from the trunk to avoid rot and girdling.
Minimal pruning is needed beyond removing dead, damaged, or crossing branches. The natural layered branching habit is one of the tree’s best features and should generally be allowed to develop naturally.
For best performance:
- Plant in well-drained soil
- Avoid areas with standing water
- Water during prolonged summer droughts
- Apply compost or organic matter to improve soil health
- Protect young trees from extreme afternoon heat if planted in full sun
Once established, Cornus Kousa becomes relatively drought tolerant and adapts well to a variety of landscape conditions.
Problems and How to Avoid Them
Although significantly more resilient than native flowering dogwoods, Cornus Kousa can still experience stress if planted improperly.
The most common issue is leaf scorch, which occurs when trees are exposed to intense afternoon sun while growing in dry soil. Preventing this is simple:
- Provide consistent moisture during dry periods
- Use mulch to retain soil moisture
- Avoid planting in reflected heat near pavement or walls
Poor drainage is far more dangerous than temporary dryness, but constantly wet soils can lead to root rot and decline. Always plant in well-drained locations and avoid compacted clay soils unless amended properly.
Insect issues such as scale insects, borers, or leafhoppers are typically minor on healthy trees. Maintaining good airflow, avoiding overwatering, and keeping the tree healthy greatly reduces the likelihood of severe infestations.
Monitoring young trees yearly for signs of stress or pest buildup helps catch problems early before they become serious.
Cultivars We Currently Have Available
‘Greensleeves’ 
A strong upright-growing selection with a more structured and architectural habit than many other Cornus Kousa. Its flowers often emerge with a subtle green tint before aging to creamy white. Excellent for narrower spaces or more formal landscapes where clean structure matters.
‘Milky Way’
One of the heaviest blooming Kousa cultivars available. Produces abundant white bracts that can nearly cover the tree during peak bloom. Also known for excellent fruit production and a broad spreading canopy with age. Ideal for maximum spring impact.
‘Samaritan’
A highly ornamental variegated cultivar featuring green leaves edged in creamy white. While the flowers are beautiful, the foliage remains the main attraction throughout the growing season. Adds brightness and contrast to the landscape even after blooming ends.
var. chinensis
A vigorous and classic form known for especially large flowers and strong adaptability. Often develops a broad layered canopy with age and serves as the foundation for many modern Kousa cultivars. Excellent as a traditional specimen tree. We have single stem and multi-stem clumps available.
Cornus Kousa continues to earn its reputation as one of the finest ornamental trees for modern landscapes. Its combination of late spring flowers, attractive fruit, rich fall color, textured bark, and dependable durability makes it valuable in every season.
Whether planted as a specimen near the home, incorporated into a woodland border, or used to attract birds and pollinators, Cornus Kousa offers long-term beauty with relatively little maintenance. With several unique cultivars available, there is truly a Cornus Kousa suited for nearly every landscape style and garden space.
