Troubleshooting
Dog's Tooth Violet problems — and how to fix them
Dog's Tooth Violet (Erythronium dens-canis) 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.
Corm rot
Caused by waterlogged soil, especially during summer dormancy. Ensure sharp drainage and avoid overwatering once leaves die back. Plant corms on their sides in a gritty substrate to shed excess water.
Failure to flower
Often results from planting corms too shallow (minimum 10 cm / 4 in deep) or disturbance during dormancy. Corms dislike being moved; site them permanently and allow clumps to naturalise undisturbed.
Vine weevil grubs
Larvae feed on corms underground, causing sudden plant collapse. Check soil when lifting or dividing; treat with nematode-based biological controls (Steinernema kraussei) in autumn.
Prevent dog's tooth violet problems before they start
Most dog's tooth violet issues are care-mismatch, not bad luck. Dial in the basics:
Looking for dog's tooth violet in general rather than its problems? Read the full dog's tooth violet care guide — light, water, soil and feeding.
Dog's Tooth Violet problems — FAQ
Why is my dog's tooth violet corm rot?
Caused by waterlogged soil, especially during summer dormancy. Ensure sharp drainage and avoid overwatering once leaves die back. Plant corms on their sides in a gritty substrate to shed excess water.
Why is my dog's tooth violet failure to flower?
Often results from planting corms too shallow (minimum 10 cm / 4 in deep) or disturbance during dormancy. Corms dislike being moved; site them permanently and allow clumps to naturalise undisturbed.
Why is my dog's tooth violet vine weevil grubs?
Larvae feed on corms underground, causing sudden plant collapse. Check soil when lifting or dividing; treat with nematode-based biological controls (Steinernema kraussei) in autumn.