Last Updated on May 5, 2026 by admin
Peace lilies are toxic to cats. They are not the same as true lilies or daylilies, but they are still not a safe plant for a cat to chew.
The important distinction is this: peace lilies (Spathiphyllum) usually cause painful mouth and throat irritation from insoluble calcium oxalate crystals. True lilies and daylilies, such as plants in the Lilium and Hemerocallis groups, can cause life-threatening kidney failure in cats. That difference matters in an emergency, but it does not make peace lilies cat-safe.
Quick Answer
If your cat bit, chewed, or swallowed part of a peace lily, call your veterinarian or a pet poison hotline for case-specific advice. Remove the plant so your cat cannot keep chewing it. Do not induce vomiting, give milk, or try home treatments unless a veterinarian or poison-control professional tells you to.
Peace lily exposure is often less dangerous than true lily exposure, but it can still be painful and sometimes needs veterinary care. Severe drooling, repeated vomiting, trouble swallowing, swelling around the mouth, breathing difficulty, weakness, or hiding are reasons to seek urgent help.
Why Peace Lilies Irritate Cats
Peace lilies contain insoluble calcium oxalate crystals. When a cat bites the leaf, stem, or flower, those tiny crystals can embed in the tissues of the mouth and throat. The result can feel like an immediate burning or stinging sensation.
The ASPCA lists peace lily as toxic to cats and dogs because of these insoluble calcium oxalates. Pet Poison Helpline gives the same core warning and notes that peace lily ingestion does not cause the acute kidney failure associated with true lilies.
Symptoms After a Cat Chews a Peace Lily
Signs can start quickly because the crystals irritate on contact. Watch for:
- Drooling or foaming at the mouth
- Pawing at the mouth or face
- Lip licking, gagging, or repeated swallowing
- Vomiting or decreased appetite
- Redness or irritation around the mouth
- Trouble swallowing
- Swelling of the lips, tongue, mouth, or throat
Many cats stop after one painful bite, but some ingest more plant material. Kittens, cats with medical problems, and cats with persistent vomiting or swelling deserve extra caution.
Peace Lilies vs True Lilies
The word “lily” creates real confusion. Peace lilies are not true lilies, but true lilies are one of the most dangerous plant exposures for cats.
The FDA warns that even small exposures to true lilies or daylilies can lead to fatal kidney failure in cats. Peace lilies and calla lilies are different plants; they contain insoluble calcium oxalate crystals and usually cause mouth and throat irritation rather than true-lily kidney toxicity.
If you are not completely sure what plant your cat chewed, treat it as urgent. Take clear photos of the plant, any label, the flowers, and the leaves, then contact your veterinarian or poison control. A correct plant ID can change the emergency plan.
What to Do Right Away
Move your cat away from the plant and put the plant somewhere inaccessible. If you can do so safely, check your cat’s mouth for visible plant pieces and remove loose fragments. Do not force your cat’s mouth open if they are painful, panicked, or likely to bite.
You can offer a small amount of water. Some poison-control guidance may recommend rinsing the mouth or paws in certain cases, but it is best to call first so the advice matches your cat’s symptoms and the amount involved.
Do not induce vomiting unless a veterinarian specifically instructs you to. For irritating plants, vomiting can make mouth and throat discomfort worse, and many home methods are unsafe for cats.
When to Call the Vet
Call your veterinarian, an emergency veterinary clinic, the ASPCA Animal Poison Control Center, or Pet Poison Helpline if your cat chewed or swallowed peace lily. Be ready to share your cat’s weight, age, health history, the part of the plant involved, how much is missing, and when it happened.
Go to urgent care if your cat has trouble breathing, facial or throat swelling, repeated vomiting, collapse, severe pain, or signs that are getting worse instead of better. Veterinary care may include mouth rinsing, anti-nausea medication, pain relief, fluids, or monitoring depending on the case.
Can You Keep a Peace Lily With Cats?
The safest answer is no, not in any place your cat can access. A high shelf is not reliable for many cats, and fallen leaves or pollen-like debris can still become available. If your cat is known to chew plants, remove the peace lily from the home.
If you keep one despite the risk, place it behind a closed door or in a room your cat never enters. Check often for dropped leaves. For most cat households, choosing a plant listed as non-toxic by a reputable poison-control source is the cleaner option.
Safer Houseplant Choices
Cat-safe does not mean every cat should eat the plant. Even non-toxic plants can cause mild stomach upset if a cat eats enough of them. Still, choosing non-toxic options lowers the risk compared with known toxic plants.
Before buying a plant, confirm the exact plant name with a reputable database such as the ASPCA toxic and non-toxic plant list. Common cat-friendlier choices often include spider plants, certain palms, Boston ferns, and African violets, but names can be confusing at garden centers. Match the scientific name whenever possible.
Bottom Line
Peace lilies are toxic to cats because they contain insoluble calcium oxalate crystals. They are not true lilies and are not expected to cause the same acute kidney failure risk as true lilies, but they can cause painful oral irritation, drooling, vomiting, and swallowing problems.
Do not treat peace lilies as safe houseplants for cats. Keep them out of reach, remove them from homes with plant-chewing cats, and call a veterinarian or pet poison hotline if your cat chews or swallows any part of one.