Troubleshooting
Kousa Dogwood problems — and how to fix them
Kousa Dogwood (Cornus kousa) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Leaf scorch
Brown leaf margins from hot sun, wind, or dry soil. Provide afternoon shade in hot climates and keep the root zone mulched and evenly moist.
Fruit drop litter
The abundant soft red fruits drop and can stain or attract wasps near patios. Site away from walkways, or sweep up fallen fruit promptly.
Powdery mildew
Less common than on native dogwood but possible in humid, crowded plantings. Ensure good air circulation and avoid drought stress to limit infection.
Slow establishment
Newly planted trees can sulk and grow slowly for a year or two. Water consistently, mulch, and avoid deep planting to speed establishment.
Prevent kousa dogwood problems before they start
Most kousa dogwood issues are care-mismatch, not bad luck. Dial in the basics:
Looking for kousa dogwood in general rather than its problems? Read the full kousa dogwood care guide — light, water, soil and feeding.
Kousa Dogwood problems — FAQ
Why is my kousa dogwood leaf scorch?
Brown leaf margins from hot sun, wind, or dry soil. Provide afternoon shade in hot climates and keep the root zone mulched and evenly moist.
Why is my kousa dogwood fruit drop litter?
The abundant soft red fruits drop and can stain or attract wasps near patios. Site away from walkways, or sweep up fallen fruit promptly.
Why is my kousa dogwood powdery mildew?
Less common than on native dogwood but possible in humid, crowded plantings. Ensure good air circulation and avoid drought stress to limit infection.
Why is my kousa dogwood slow establishment?
Newly planted trees can sulk and grow slowly for a year or two. Water consistently, mulch, and avoid deep planting to speed establishment.