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Is Squirrel Corn Toxic to Cats?

☠️ ToxicSeverity: Moderate
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.
Yes, squirrel corn is toxic to cats. It carries the same isoquinoline alkaloids as bleeding heart and Dutchman’s breeches, which act on the nervous system.

Also known as: Turkey Corn, Wild Bleeding Heart Relative, Dicentra canadensis · Dicentra canadensis

What makes it toxic

Isoquinoline alkaloids shared with its Dicentra and Corydalis relatives, concentrated in the underground tubers (the yellow “corns”) and present in foliage. They depress and then overstimulate the nervous system in quantity.

Warning signs to watch for

Drooling, vomiting, trembling, staggering and dilated pupils within hours; larger ingestions can progress to seizures and breathing difficulty.

What to do if your cat eats it

Remove the plant, rinse the mouth and call your vet — promptly so if the tubers were dug up and eaten, since those are the most alkaloid-rich part.

Common questions

Is squirrel corn related to bleeding heart?

Yes — both are Dicentra species of eastern woodlands, and both carry the same alkaloid class. Treat them with equal caution.

Why do the tubers tempt animals?

The small yellow bulblets look like kernels and are the part squirrels actually stockpile, hence the name. A curious cat digging in a shaded garden bed can dig them up too.

More plants checked for cats

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.