Troubleshooting
Common Butterwort problems — and how to fix them
Common Butterwort (Pinguicula vulgaris) 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.
Rot over winter
The dormant hibernaculum rots if kept flooded. Keep it just damp and cool over winter, not standing in deep water.
Decline without a cold rest
It is a temperate species needing months of winter chill (near 0-5°C). Kept warm year-round it weakens; grow it outdoors or in an unheated space.
Substrate too acidic
Unlike most carnivores it prefers neutral to slightly alkaline conditions — add a little limestone grit if the rosette stalls in pure acid peat.
Loss of stickiness
Low light or the seasonal shift toward the resting bud. Provide brighter, cool conditions in the growing season.
Prevent common butterwort problems before they start
Most common butterwort issues are care-mismatch, not bad luck. Dial in the basics:
Looking for common butterwort in general rather than its problems? Read the full common butterwort care guide — light, water, soil and feeding.
Common Butterwort problems — FAQ
Why is my common butterwort rot over winter?
The dormant hibernaculum rots if kept flooded. Keep it just damp and cool over winter, not standing in deep water.
Why is my common butterwort decline without a cold rest?
It is a temperate species needing months of winter chill (near 0-5°C). Kept warm year-round it weakens; grow it outdoors or in an unheated space.
Why is my common butterwort substrate too acidic?
Unlike most carnivores it prefers neutral to slightly alkaline conditions — add a little limestone grit if the rosette stalls in pure acid peat.
Why is my common butterwort loss of stickiness?
Low light or the seasonal shift toward the resting bud. Provide brighter, cool conditions in the growing season.