Pet safety

Are peace lilies toxic to cats?

Yes. Peace lilies are toxic to cats: chewing releases crystals that irritate the mouth and throat. Contact a veterinarian after suspected ingestion.

Cat sitting near a peace lily kept on a high shelf to prevent chewing.
Updated September 28, 2026 4 min read

At a glance

Toxicity
Toxic to cats and dogs
Mechanism
Insoluble calcium oxalate crystals
Possible symptoms
Mouth irritation, drooling, vomiting, difficulty swallowing
First action
Contact a veterinarian or animal poison-control service

Why peace lilies are toxic

Peace lily (Spathiphyllum) contains insoluble calcium oxalate crystals. Chewing the plant can cause oral pain and irritation, excessive drooling, vomiting, and difficulty swallowing. The seriousness of an exposure cannot be decided from a missing leaf or body weight alone.

Can a peace lily kill a cat?

Peace lily does not cause the characteristic kidney failure associated with true lilies (Lilium) and daylilies (Hemerocallis). That distinction does not make chewing it safe: mouth and throat swelling can be serious, and an uncertain plant identification changes the urgency.

If your cat may have contacted a true lily or daylily, call a veterinarian immediately without waiting for symptoms. Pollen, petals, leaves, and vase water can all be dangerous. Photograph the plant while arranging help; do not delay the call to identify it yourself. Our peace lily versus true lily guide explains the naming difference.

What to do after suspected chewing

Move the plant out of reach and contact your veterinarian or an animal poison-control service promptly, even if symptoms have not appeared. In the U.S., ASPCA Poison Control is available at 888-426-4435; a consultation fee may apply. Elsewhere, call your local veterinarian or emergency veterinary clinic.

Do not induce vomiting, force water, or give medicines or home remedies unless a veterinary professional directs you. Avoid reaching into a distressed animal’s mouth. Follow the professional’s advice about cleaning away visible plant pieces and any home monitoring.

Difficulty breathing or swallowing, marked swelling, collapse, or seizures need emergency veterinary care immediately. Do not wait for a time threshold. See the symptoms and first-response guide for what information to have ready.

Information to give the veterinarian

  • A photo of the plant, its label, and any damaged leaves or flowers.
  • The time of exposure and an estimate of how much is missing.
  • Your pet’s age, weight, health conditions, and current symptoms.
  • Whether soil, fertilizer, or another plant may also have been swallowed.

Prevent another exposure

Keep peace lilies in a closed room your pet cannot enter. A high shelf alone is unreliable, particularly for climbing cats or pets that can knock over a pot. Pick up fallen leaves and flowers, and put pruning scraps in a closed bin immediately.

If you cannot keep the plant inaccessible, choose a replacement whose exact botanical name has been checked against a veterinary toxic-plant resource. Do not rely on a pet losing interest after one bite.

M
Written by Marina Remeslo
Last updated September 28, 2026

I like the detective work: plant names, symptoms, sources, and the small details that explain why a peace lily changes.