Troubleshooting
Cobra Lily problems — and how to fix them
Cobra Lily (Arisaema sikokianum) 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.
Winter-wet corm rot
This species is notably prone to rotting in cold, sodden soil. Plant in gritty, free-draining woodland soil and avoid winter waterlogging, or lift and store the corm dry.
Late spring emergence
It breaks dormancy late and can look absent well into spring. Mark its position so it is not disturbed or dug up while still underground.
Slug and snail damage
Emerging shoots and the prized leaves are vulnerable to slugs and snails in damp shade. Protect new growth early in the season.
Toxic red berries
Any berry cluster that forms is poisonous and attractive to children and pets. Remove it in family or pet gardens, handling with gloves.
Prevent cobra lily problems before they start
Most cobra lily issues are care-mismatch, not bad luck. Dial in the basics:
Cobra Lily problems — FAQ
Why is my cobra lily winter-wet corm rot?
This species is notably prone to rotting in cold, sodden soil. Plant in gritty, free-draining woodland soil and avoid winter waterlogging, or lift and store the corm dry.
Why is my cobra lily late spring emergence?
It breaks dormancy late and can look absent well into spring. Mark its position so it is not disturbed or dug up while still underground.
Why is my cobra lily slug and snail damage?
Emerging shoots and the prized leaves are vulnerable to slugs and snails in damp shade. Protect new growth early in the season.
Why is my cobra lily toxic red berries?
Any berry cluster that forms is poisonous and attractive to children and pets. Remove it in family or pet gardens, handling with gloves.