Roughleaf dogwood is a native deciduous shrub or small tree from the Great Plains and Midwest, reaching 15–25 feet tall with a 10–15 foot spread. It tolerates poor soils, drought, and partial shade, making it a practical choice for naturalistic plantings, wildlife corridors, and difficult sites where more refined shrubs fail.
Flat-topped clusters of small white flowers appear in summer, followed by white fruits that ripen August through October. The plant spreads by root sprouts, forming dense thickets that provide cover and nesting habitat. That suckering habit is useful for erosion control on banks and disturbed ground but requires management in confined spaces.
More than 40 bird species are documented feeding on the fruit, which ripens during fall migration. The dense thickets shelter small mammals and ground-nesting birds year-round. Few native shrubs deliver comparable wildlife benefit across such a wide range of growing conditions.
Dogwood Anthracnose
Irregular tan to brown spots on leaves with distinct purple or reddish margins, often starting at leaf tips and edges. In advanced cases: blighted shoots, stem cankers, and epicormic sprouts emerging from the lower trunk. Infected dead leaves may cling to branches through winter rather than dropping.
Remove and destroy all infected leaves, shoots, and cankered branches. Avoid overhead irrigation. Apply a copper-based or chlorothalonil fungicide starting at bud break in spring, repeating every 10–14 days during wet weather. Maintain tree vigor with consistent moisture and mulch — stressed trees are far more vulnerable. In high-pressure sites, consider replacing with anthracnose-resistant cultivars such as 'Appalachian Spring'.
Dogwood Canker
Sunken, discolored, or cracked areas on stems and branches; wood beneath the canker is brown and dead; affected stems wilt and die back from the canker site toward the tip.
Prune infected stems at least 6 inches below visible canker tissue. Sterilize cutting tools with 70% isopropyl alcohol between each cut. Dispose of removed material — do not compost. Maintain plant vigor through consistent watering and avoid wounding stems during routine maintenance. No chemical controls are reliably effective once infection is established; prevention through plant health is the primary strategy.
Powdery mildew
White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.
Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.