Troubleshooting
Silver Pagoda Dogwood problems — and how to fix them
Silver Pagoda Dogwood (Cornus alternifolia 'Argentea') 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 on variegated margins
The white leaf margins are highly susceptible to desiccation from sun, wind, or dry soil. Brown, papery leaf edges are the most common complaint. Prevent by siting in shelter with dappled shade and maintaining consistent soil moisture. Once scorched, leaves do not recover.
Dogwood anthracnose (Discula destructiva)
A serious fungal disease causing brown leaf spots with purple margins, twig dieback, and eventual crown decline in severe cases. Worse in cool, wet springs. Improve air circulation, avoid overhead watering, and remove dead wood promptly. No fungicide fully eliminates the disease.
Reversion to green-leaved shoots
Occasional all-green shoots ('reversions') can appear and, being more vigorous than the variegated form, will eventually dominate if not removed. Cut reverted stems back to the point of origin as soon as they are noticed, at any time of year.
Prevent silver pagoda dogwood problems before they start
Most silver pagoda dogwood issues are care-mismatch, not bad luck. Dial in the basics:
Silver Pagoda Dogwood problems — FAQ
Why is my silver pagoda dogwood leaf scorch on variegated margins?
The white leaf margins are highly susceptible to desiccation from sun, wind, or dry soil. Brown, papery leaf edges are the most common complaint. Prevent by siting in shelter with dappled shade and maintaining consistent soil moisture. Once scorched, leaves do not recover.
Why is my silver pagoda dogwood dogwood anthracnose (discula destructiva)?
A serious fungal disease causing brown leaf spots with purple margins, twig dieback, and eventual crown decline in severe cases. Worse in cool, wet springs. Improve air circulation, avoid overhead watering, and remove dead wood promptly. No fungicide fully eliminates the disease.
Why is my silver pagoda dogwood reversion to green-leaved shoots?
Occasional all-green shoots ('reversions') can appear and, being more vigorous than the variegated form, will eventually dominate if not removed. Cut reverted stems back to the point of origin as soon as they are noticed, at any time of year.