Peace Lily — (c) Dick Culbert, some rights reserved (CC BY)
Photo by (c) Dick Culbert, some rights reserved (CC BY)iNaturalistCC BY
cat safety reference

Is Peace Lily safe for cats?

Spathiphyllum

The Mauna Loa Peace Lily is a popular indoor plant known for its elegant white spathes and lush foliage. It contains insoluble calcium oxalate crystals that can cause irritation upon contact or ingestion.

Peace LilySpathSpathiphyllumWhite Sails
Light
Low to medium indirect light
Habit
Clumping herbaceous perennial
Care
Moderate

Safety status

Cats

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

What this means for your cat

Despite the name, the peace lily is not a true lily — it won't cause kidney failure the way a Lilium does. It is, however, packed with insoluble calcium oxalate crystals that fire into a cat's tongue and gums the moment she chews a leaf. Reactions are painful and instant, but in most cats they stay confined to the mouth and GI tract and resolve within a few days with supportive care.

What to watch for

Almost immediate pawing at the mouth, lip smacking, and head shaking. Heavy drooling, decreased appetite, and vomiting (sometimes with visible leaf bits) typically follow within minutes. Watch for ongoing refusal to eat or drink — the mouth pain can keep cats from drinking, and dehydration is the more common follow-on problem than airway swelling.

Time window

Signs appear within minutes to a couple of hours of chewing. With appropriate care, symptoms typically resolve within 1–3 days without lasting effects.

When to call the vet

Call your vet or Pet Poison Helpline (855-764-7661) if drooling lasts more than an hour, your cat refuses food or water, vomiting persists, or you see any swelling of the mouth or face. Severe oral swelling or any change in breathing is an emergency — go straight to a clinic.

First aid at home

Take the plant material away and gently rinse your cat's mouth with cool water to wash out remaining crystals. Do not induce vomiting. Then call your vet or Pet Poison Helpline for next steps.

Sources: ASPCA, Pet Poison Helpline.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Catsconcern notes

Common signs

Oral irritation, intense burning and irritation of the mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

Escalation note

Symptoms are generally localized to the mouth and gastrointestinal tract. If your cat has ingested any part of this plant, please contact your veterinarian or a pet poison control center immediately.

Safer alternatives

Some links earn us a small commission. They never affect our safety classifications.

Source evidence

Cats & dogs pagedogs pageMy cat ate Peace Lily

Same cat verdict

Related plants for cats