Plants and pets

Are peace lilies toxic to cats and dogs?

Peace lily · Spathiphyllum

Cats: Toxic Dogs: Toxic
Plamp No. 004 Checked November 10, 2026

Yes. The ASPCA lists peace lily as toxic to cats and dogs. It contains insoluble calcium oxalate crystals, and the signs ASPCA lists are a burning, irritated mouth, drooling, vomiting and trouble swallowing.

At a glance

PlantPeace lily (Spathiphyllum)
CatsToxic
DogsToxic
Toxic principleinsoluble calcium oxalate crystals
Signs ASPCA listsmouth irritation, with burning of the mouth, tongue and lips; heavy drooling; vomiting; trouble swallowing
ASPCA pagePeace Lily, checked November 10, 2026

What else to know

Peace lily is not a true lily. It belongs to the arum family (Araceae), with pothos and monstera. True lilies (Lilium) are a different matter for cats: ASPCA lists kidney failure as the sign, while for dogs it lists them as non-toxic.

The name alone tells you little: if a cat chewed a “lily”, what ASPCA lists depends on which lily it was.

Look-alikes

  • True lily (Lilium): toxic to cats, non-toxic to dogs (ASPCA). ASPCA lists kidney failure in cats; dogs are on the non-toxic list. A different risk from peace lily.
  • Calla lily: toxic to cats, toxic to dogs (ASPCA). Same family, same verdict and same oxalate signs as peace lily. Also not a true lily.

Care basics

Light: Part to deep shade. Keep it out of direct sun.

Soil and water: Keep the soil moist but not soggy, and let it dry a little between waterings. Watering from below works well. It likes 68 to 85°F by day.

Source: NC State Extension Plant Toolbox: Spathiphyllum.

If your pet ate some

Call your vet, or ASPCA Animal Poison Control at (888) 426-4435, as soon as you can. ASPCA runs the line 24 hours a day, every day of the year, and says a consultation fee may apply.

Call (888) 426-4435 · ASPCA Animal Poison Control

This page is reference information, not veterinary advice. Toxicity facts are summarized in our own words from the ASPCA Toxic and Non-Toxic Plants list; Plamp is not affiliated with the ASPCA.

Sources

Checked November 10, 2026.

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