Is dieffenbachia toxic to dogs or cats?
Also known as: Dumb cane
Strong oxalate burn: significant mouth swelling is possible.
Among the harsher oxalate plants for cats.
Dumb cane earned its name because the mouth swelling it causes can temporarily interfere with speech in people, and it is one of the stronger oxalate plants for pets too. Watch closely for swelling that affects swallowing or breathing: that upgrade means the vet, now. Otherwise manage like the other oxalate plants.
Signs to watch for
- Severe mouth irritation
- Swelling of lips and tongue
- Drooling
- Difficulty swallowing
Sources: ASPCA toxic and non-toxic plant list, Pet Poison Helpline. Verdicts are conservative by design: where evidence is thin we choose the stricter rating.
This is general educational information, not veterinary advice. When in doubt about your own pet, ask your veterinarian.
If your pet just ate something risky, act now: call your vet, ASPCA Animal Poison Control at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 (consultation fees may apply).