Saving a Pinky Winky Hydrangea from Cercospora Leaf Spot

Diagnosis Confirmed

The spots on your one-year-old Pinky Winky hydrangea are classic Cercospora leaf spot—a common, treatable fungal disease.

Step-by-Step Treatment

1. Purchase fungicide with propiconazole or chlorothalonil (liquid concentrate).
2. Spray to dripping wet every 10 days through the growing season.
3. Remove and bag all fallen leaves—do not compost. This eliminates spore reservoirs.
4. Water at soil level only, morning preferred. Keep foliage dry.

Seasonal Timeline

• Now: Begin spray regimen.
• Fall leaf drop: Stop spraying; clean up all debris thoroughly.
• Spring: Resume preventive sprays as new leaves emerge.

Note on Organic Options

While organic methods work for many issues, Cercospora is notably stubborn. These synthetic fungicides provide the most reliable control.

Sentimental Value

Your hydrangea marks a beloved pet's resting place—consistent care will preserve it for years.