Troubleshooting
Blue Creeping Speedwell problems — and how to fix them
Blue Creeping Speedwell (Veronica umbrosa 'Georgia Blue') 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.
Powdery mildew
Can develop in hot, dry, or poorly ventilated positions. Maintain good air circulation and water the soil rather than leaves. Apply a sulfur-based fungicide if infection is severe.
Crown rot in wet winters
Persistently wet, poorly drained soil leads to crown rot. Improve drainage before planting and avoid mulching directly over the crown in wet climates.
Vine weevil
Vine weevil larvae feed on roots, causing sudden collapse of sections of the mat. Apply biological control (Steinernema kraussei nematodes) to soil in late summer or early autumn.
Prevent blue creeping speedwell problems before they start
Most blue creeping speedwell issues are care-mismatch, not bad luck. Dial in the basics:
Blue Creeping Speedwell problems — FAQ
Why is my blue creeping speedwell powdery mildew?
Can develop in hot, dry, or poorly ventilated positions. Maintain good air circulation and water the soil rather than leaves. Apply a sulfur-based fungicide if infection is severe.
Why is my blue creeping speedwell crown rot in wet winters?
Persistently wet, poorly drained soil leads to crown rot. Improve drainage before planting and avoid mulching directly over the crown in wet climates.
Why is my blue creeping speedwell vine weevil?
Vine weevil larvae feed on roots, causing sudden collapse of sections of the mat. Apply biological control (Steinernema kraussei nematodes) to soil in late summer or early autumn.