Troubleshooting
Dropwort problems — and how to fix them
Dropwort (Filipendula vulgaris) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Powdery mildew
The fine foliage is susceptible to powdery mildew in warm, dry summers with poor air circulation; plant in an open position, water at the base rather than overhead, and cut back affected stems to promote clean new growth.
Fungal leaf spot
Brown or dark spots on foliage can develop in wet seasons; remove affected leaves promptly, avoid wetting foliage when watering, and ensure the soil drains freely to reduce the humidity around the crown.
Prevent dropwort problems before they start
Most dropwort issues are care-mismatch, not bad luck. Dial in the basics:
Dropwort problems — FAQ
Why is my dropwort powdery mildew?
The fine foliage is susceptible to powdery mildew in warm, dry summers with poor air circulation; plant in an open position, water at the base rather than overhead, and cut back affected stems to promote clean new growth.
Why is my dropwort fungal leaf spot?
Brown or dark spots on foliage can develop in wet seasons; remove affected leaves promptly, avoid wetting foliage when watering, and ensure the soil drains freely to reduce the humidity around the crown.