Troubleshooting
Pink Flowering Dogwood problems — and how to fix them
Pink Flowering Dogwood (Cornus florida 'Rubra') 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.
Dogwood anthracnose (Discula destructiva)
Tan spots with purple margins on leaves progressing to twig dieback and basal cankers; most destructive in cool, wet, shaded conditions — site in good air movement, avoid overhead watering, prune out infected wood, and apply protective fungicide in early spring if the disease is known in the area.
Dogwood borer (Synanthedon scitula)
Larvae enter through bark wounds, tunnelling under the trunk and major branches and causing branch dieback; maintain a clean mulch ring to prevent mower/string-trimmer damage, which is the primary entry point.
Leaf scorch
Marginal leaf browning and premature drop in summer caused by drought stress, compacted soil, or excessive afternoon sun; maintain mulch, water consistently, and select a partially shaded planting position.
Prevent pink flowering dogwood problems before they start
Most pink flowering dogwood issues are care-mismatch, not bad luck. Dial in the basics:
Pink Flowering Dogwood problems — FAQ
Why is my pink flowering dogwood dogwood anthracnose (discula destructiva)?
Tan spots with purple margins on leaves progressing to twig dieback and basal cankers; most destructive in cool, wet, shaded conditions — site in good air movement, avoid overhead watering, prune out infected wood, and apply protective fungicide in early spring if the disease is known in the area.
Why is my pink flowering dogwood dogwood borer (synanthedon scitula)?
Larvae enter through bark wounds, tunnelling under the trunk and major branches and causing branch dieback; maintain a clean mulch ring to prevent mower/string-trimmer damage, which is the primary entry point.
Why is my pink flowering dogwood leaf scorch?
Marginal leaf browning and premature drop in summer caused by drought stress, compacted soil, or excessive afternoon sun; maintain mulch, water consistently, and select a partially shaded planting position.