Of all the native flowering understory trees, Flowering Dogwood (Cornus florida) is probably the most well-known. If you think of the most well-loved parks and natural areas, from Longwood Gardens to the Great Smoky Mountains, flowering dogwood often takes center stage in the Spring. It is one of our favorite accent trees for a designed landscape, we have several young dogwoods in our Indiana garden.
Nothing says Spring in Eastern North America like a mature dogwood tree in full bloom! From the snow-white flowers in mid Spring to the burning scarlet Autumn foliage and the highly architectural branch and twig structure in Winter, Flowering Dogwood is a true four-season interest tree.
What we see as flowers are actually bracts, which are modified leaf structures – The trees often bloom for weeks at a time since sturdy bracts typically last longer than fragile flower petals. The true flowers are the small greenish-yellow center of the “bloom”, giving way to bright scarlet berry clusters in the fall.
Often associated with the Appalachian Mountains, Flowering Dogwood actually has a very widespread range, covering most of the Eastern Broadleaf Forest region. It is very common in better quality woodlands here in Indiana, and seeing flowering dogwoods is usually a sign of either virgin forest or diverse, well-regenerated second growth forest.
Flowering Dogwood Ecological Function and Landscape Uses
Ecological Function: Keystone
As a flowering tree that provides nectar and pollen as well as berries in the fall, Cornus florida is a solid choice for an environmentally functional landscape.
Supporting over 100 species of Lepidoptera (Caterpillars) and providing pollen for both generalist and specialist native bees, Cornus florida definitely counts as a Keystone Species.
Landscape Function: Accent
While not the easiest tree to grow in some areas, Flowering Dogwood is probably one of the most commonly planted native flowering trees. Providing a bold flash of blooms in the spring as well as all-season architectural form, a few well-placed dogwoods can really complement a nature-inspired landscape design.
Flowering dogwood blooms in mid Spring, right around the same time as the main flush of spring woodland wildflowers. It can be susceptible to highly destructive Dogwood Anthracnose, but this can be mitigated by providing good sunlight and air flow so that moisture doesn’t rest on the leaves.
Cultivation: How to Grow Flowering Dogwood
Cornus florida is grows best in moist, well-drained loamy soils with a good amount of morning sun and protection from hot afternoon sunlight. Flowering dogwood does best in neutral to slightly acidic soils that are rich in calcium. While flowering dogwood can take shade, it doesn’t bloom as heavily and tends to be more susceptible to the previously mentioned Anthracnose disease.
Plant Flowering Dogwood at least 12 feet away from existing trees, giving the tree plenty of horizontal room to spread. the plants combine with flowering trees that bloom at the same time, particularly redbud (Cornus florida) and sweet crab apple (Malus coronaria) – These three trees are in a similar hue range, offering a cohesiveness and symmetry to the springtime woodland edge.
Flowering Dogwood Photo Gallery
Flowering Dogwood (Cornus florida) attributes
| Common Name: | Flowering Dogwood |
| Botanical Name: | Cornus florida |
| USDA Hardiness Zones: | 5-9 |
| Height: | 15-30 ft. |
| Spread: | 15-30 ft. |
| Spacing: | min. 12 ft. for good form |
| Growth Rate: | Medium |
| Flower Color: | White with Greenish-Yellow Centers |
| Bloom Season: | Mid Spring |
| Foliar Texture: | Medium |
| Habit: | Round with Strongly Horizontal Branching |
| Light Exposure: | Part Sun to Part Shade – Morning Sun Preferred |
| Soil Moisture: | Moist to Average |
| Soil Texture: | Clay Loam to Sandy Loam |
| Soil PH: | Neutral to Slightly Acidic |
| Landscape Role: | Accent |
| Ecological Function: | Keystone (Lepidoptera & Pollinators) |
| Other Benefits: | Clay Tolerant if soil isn’t compacted |