Flowering Dogwood

The beloved icon of the eastern spring woods - a small understory tree in a cloud of white or pink 'flowers,' followed by red berries the birds love and blazing red-purple fall color.

Part shade, moist acidic well-drained soil, and good airflow; keep it evenly watered and unwounded - dogwood's disease troubles mostly follow drought stress and poor sites.

Flowering dogwood is a woodland-understory tree, and it wants understory conditions: part shade (ideally high or afternoon shade), moist, acidic, well-drained, humusy soil, and - importantly - good air circulation. It struggles in full hot sun, in dry or alkaline soil, and in stagnant, damp, deeply shaded pockets where its fungal diseases thrive.

Success is largely about avoiding stress. Keep the shallow roots consistently moist (mulch helps, and never let it drought-stress), protect the thin bark from mowers and string trimmers (wounds invite borers and disease), and give it airflow. In regions where dogwood anthracnose is a serious problem (cool, wet mountains and the Northeast), consider planting the more resistant Cornus kousa (Asian dogwood) or resistant C. florida x kousa hybrids ('Stellar' series) or Appalachian-series cultivars instead. Sited well and kept unstressed, though, flowering dogwood is a spectacular and rewarding native.

Keep it watered and unstressed, mulch the shallow roots, prune minimally in late winter, and protect the thin bark - most dogwood problems trace back to drought or wounds.

Dogwood care is mostly about preventing stress, because a stressed dogwood is a sick dogwood. Water it in every dry spell (this is the single most important thing), keep a wide mulch ring over the shallow roots, and avoid wounding the thin bark, which is the entry point for the dogwood borer and disease. Prune only minimally, in late winter, to remove dead, crossing, or damaged wood.

Scout through the season for its two main threats: dogwood anthracnose (leaf spots with purple margins, twig and branch dieback, worst in cool wet shaded sites - a serious disease that has killed many wild dogwoods) and powdery mildew (a white coating - common and usually cosmetic). Good airflow, moisture, sanitation (rake fallen leaves), and choosing resistant cultivars where anthracnose is prevalent are the real tools; routine spraying isn't practical for a landscape tree. A healthy, well-sited dogwood generally shrugs off the milder issues.

There's no crop to harvest or store - the berries are toxic to people and meant for the birds; flowering dogwood is grown purely for its beauty and wildlife value.

Flowering dogwood has nothing to harvest or store for people. Its red fall berries are toxic to humans and are not edible in any form - they're a wildlife food, not a crop, and are best left entirely to the birds. (Don't confuse this with the unrelated cornelian cherry, Cornus mas, whose fruit is edible - flowering dogwood's are not.) The tree is grown solely for its spring bracts, fall color, form, and wildlife value, so 'storage' doesn't apply. If you want to grow more trees, you can collect and clean the seed for stratifying and sowing (see Propagation), but that's the only thing worth saving from the plant, and it's for planting, not eating.

Grow from cleaned, stratified seed (slow) or a nursery transplant; named and disease-resistant cultivars are grafted or grown from cuttings.

Flowering dogwood can be grown from seed: clean the pulp from ripe fall berries and give the seed a warm period followed by cold-moist stratification (fall-sowing outdoors accomplishes this), after which it germinates slowly in spring. Seedlings take several years to bloom and their bract color and disease resistance vary, so seed is mainly for growing many plants or rootstock.

For a specific flower color or, importantly, for disease resistance, the named cultivars and hybrids are propagated by grafting or cuttings - and in anthracnose-prone regions, buying a resistant cultivar (or a Cornus kousa or a Stellar-series hybrid) is far wiser than growing an unknown seedling. Most gardeners simply buy a young nursery transplant, which flowers within a few years. Whatever the source, protect the shallow roots and thin bark, and keep the young tree moist and unstressed.

Not a food plant - its berries are toxic to people. Its value is ecological: high-fat fall berries that fuel migrating birds, early pollinator bracts, and native caterpillar habitat.

Flowering dogwood is not a food plant for people - its berries are toxic to us. Its value is entirely ecological and ornamental, and it's a genuinely important wildlife tree. Its red fall berries are high in fat and ripen precisely as fall bird migration peaks, making them a prized, energy-rich food for dozens of bird species (thrushes, waxwings, robins, and many more) fueling their journeys - one of the best bird-berry trees of the eastern woods.

Its spring bracts and flowers draw early pollinators, and its foliage is a host for native caterpillars (spring azure butterflies among others), which feed nesting birds. As a mid-story tree it also provides nesting sites and structure. So while flowering dogwood offers people beauty rather than food, it feeds the birds and the food web richly, especially at the critical migration season - a small tree with an outsized wildlife role.

Most trouble traces to stress and site - drought, hot sun, poor airflow, or bark wounds - which invite anthracnose, powdery mildew, and borers; keep it moist, shaded, airy, and unwounded.

Leaf spots with purple edges, twig and branch dieback, cankers: dogwood anthracnose, a serious fungal disease favored by cool, wet, shaded, stressed conditions - improve airflow and drainage, keep the tree unstressed, remove and destroy infected wood and fallen leaves, and in prone regions replace with a resistant kousa or hybrid dogwood. White powdery coating on leaves: powdery mildew - common, mostly cosmetic; improve airflow and choose resistant cultivars. Sawdust, holes, and dieback low on the trunk: dogwood borer, which enters through bark wounds - protect the bark from mowers and prune damage, and keep the tree vigorous. Scorched leaves, decline: drought and/or too much hot sun - dogwood is an understory tree; water it faithfully and give it afternoon shade. Poor flowering: too much deep shade (give it more light) or drought stress. Yellowing leaves: often alkaline soil - dogwood wants acidic ground.

Native and best across the eastern U.S. (zones 5-9) in part shade and acidic moist soil; anthracnose limits it in cool wet mountains and the North, while the hot South needs afternoon shade and moisture.

Flowering dogwood is native across the eastern United States, zones 5-9, and thrives as an understory tree in acidic, moist, well-drained soil with part shade. Zones 5-6 and cool, wet mountains: hardy, but this is where dogwood anthracnose is most devastating - favor resistant cultivars, kousa dogwoods, or hybrids, and ensure excellent airflow. Zones 6-8: its heartland - spectacular in the spring woods and in yards with dappled shade and moisture. Hot South (zones 8-9): grows well but needs afternoon shade and consistent moisture to avoid scorch and stress; full hot sun and dry soil are hard on it. It dislikes alkaline soil everywhere (causing chlorosis). Matched to a moist, airy, part-shade site and, where anthracnose is a threat, to a resistant type, flowering dogwood is a beloved and dependable native across the East - just not a plant for hot, dry, exposed, or alkaline situations.