Botanica Notes

Peace Lily Spathiphyllum wallisii

Is Peace Lily Toxic to Cats and Dogs?

Is Peace Lily Toxic to Cats and Dogs?

Quick answer: Yes, peace lily is toxic to cats and dogs. If your pet chews the plant, contact your vet or the ASPCA Animal Poison Control Center right away, especially if symptoms appear.

Peace Lily at a glance

Botanical name Spathiphyllum wallisii
Light Bright indirect light; tolerates low light. 6-8 hours indirect exposure ideal
Watering Water when top 1-2 inches of soil dry. Every 4-7 days bright light, 5-9 days medium, 7-12 days low light
Humidity 50-60% ideal; place on tray of moist pebbles
Temperature 65-80°F (18-27°C); avoid below 45°F and cold drafts
Soil Well-draining mix: 2 parts peat moss, 1 part pine bark, perlite, organic compost
Feeding Balanced liquid fertilizer (20-20-20) every 6-8 weeks spring/summer at 1/4 strength
Size 12-15 inches tall (dwarf Wallisii variety)
Difficulty easy
Cats ⚠️ toxic — Calcium oxalates cause oral irritation, burning, drooling, vomiting
Dogs ⚠️ toxic — Calcium oxalates cause oral irritation, burning, drooling, vomiting

What makes peace lily toxic to pets

Peace lily contains insoluble calcium oxalates found throughout the plant—in the leaves, stems, and all other parts. When a cat or dog chews the plant, these crystals release and act like microscopic needles, stabbing the tissues they touch. This is why even a small amount of plant material can cause discomfort.

Symptoms to watch for if your pet ate peace lily

Symptoms usually appear quickly, though in some cases they can take a few hours to show. Watch for:

  • Oral irritation, intense burning and irritation of the mouth, tongue and lips
  • Excessive drooling
  • Vomiting
  • Difficulty swallowing

While peace lily poisoning is uncomfortable and distressing, it’s not in the same category as true lilies—it does not cause kidney failure. Still, any of these symptoms warrant a call to your vet or the ASPCA Animal Poison Control Center immediately.

How to keep your cat or dog safe

The safest approach is to keep peace lily out of reach of pets entirely. Place your plant on a high shelf, in a room your pet doesn’t access, or choose a pet-safe houseplant instead if you have curious cats or dogs in your home.

Read the full guide: Peace Lily Care: The Complete Guide

More about Peace Lily

The same problem in other plants

This article is for general information. If a pet or child may have eaten a plant, contact your vet, an animal poison control center or a doctor right away.

Sources

Photo: Serg Alesenko / Pexels, Pexels