Troubleshooting
Burgundy Periwinkle problems — and how to fix them
Burgundy Periwinkle (Vinca minor 'Atropurpurea') 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.
Stem blight (Phoma or Botrytis)
Stems blacken and collapse, often following wet, cool springs. Improve air circulation by thinning dense patches, avoid overhead irrigation, and remove infected stems. Fungicide applications (chlorothalonil or copper-based) can help in persistent cases.
Deer and rabbit browsing
Deer will browse young growth, especially in winter when other food is scarce. Apply deer-repellent sprays seasonally or use physical barriers in high-pressure areas. Established dense mats are somewhat less palatable.
Invasive spreading
Vinca minor is listed as invasive in parts of the eastern United States and Pacific Northwest. Stems that escape into natural areas can out-compete native vegetation. Edge plantings regularly with a spade and dispose of clippings — do not compost.
Prevent burgundy periwinkle problems before they start
Most burgundy periwinkle issues are care-mismatch, not bad luck. Dial in the basics:
Burgundy Periwinkle problems — FAQ
Why is my burgundy periwinkle stem blight (phoma or botrytis)?
Stems blacken and collapse, often following wet, cool springs. Improve air circulation by thinning dense patches, avoid overhead irrigation, and remove infected stems. Fungicide applications (chlorothalonil or copper-based) can help in persistent cases.
Why is my burgundy periwinkle deer and rabbit browsing?
Deer will browse young growth, especially in winter when other food is scarce. Apply deer-repellent sprays seasonally or use physical barriers in high-pressure areas. Established dense mats are somewhat less palatable.
Why is my burgundy periwinkle invasive spreading?
Vinca minor is listed as invasive in parts of the eastern United States and Pacific Northwest. Stems that escape into natural areas can out-compete native vegetation. Edge plantings regularly with a spade and dispose of clippings — do not compost.