Is lily of the valley toxic to dogs or cats?
Cardiac glycosides: not a true lily but still an emergency.
Dangerous to the heart, though it spares the kidneys unlike true lilies.
Lily of the valley is not a true lily, but it contains cardiac glycosides similar to foxglove, so it earns its danger rating a different way. All parts are toxic, including the little red berries. Any ingestion is a vet call, for dogs and cats alike.
Signs to watch for
- Vomiting
- Diarrhea
- Slowed heart rate
- Arrhythmia
- Seizures
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).