Round-leaved dogwood is a native deciduous shrub or small tree found in moist woodlands, forest edges, and stream banks across northeastern and north-central North America. It produces flat-topped clusters of small white flowers in early summer followed by pale blue-white berries that birds consume quickly once ripe. Its distinctively rounded leaves, broader than most other native dogwoods, give the species its name and make identification straightforward.
It is among the most cold-hardy native dogwoods and tolerates a range of light conditions from full shade to part sun. It adapts to sandy, loamy, or clay soils across a mildly acidic to alkaline pH range. It performs best in consistently moist, humus-rich soils and fits naturally along rain garden edges, in low spots, or as an understory layer beneath taller trees. Young stems take on reddish or purplish tones in winter, extending visual interest through the dormant season. The plant spreads gradually by suckers; remove unwanted shoots at the base to manage spread.
Ojibwe and other Great Lakes peoples dried the inner bark and used it in kinnikinnick, a traditional smoking blend often mixed with other botanical material. The berries, while not a human food source, are a documented late-season resource for migratory thrushes, waxwings, and other frugivorous birds.
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.