Is Peace Lily Toxic to Dogs and Cats? (2026)
Spathiphyllum
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Quick facts
| Toxic to dogs | Yes |
|---|---|
| Toxic to cats | Yes |
| Toxic to horses | Yes |
| Toxic component | Insoluble calcium oxalate crystals |
| Onset of symptoms | Within minutes of chewing |
| Indoor / outdoor | indoor |
If your pet ate this plant
Both lines are staffed 24/7. A consultation fee applies to each. Do not wait for symptoms to appear before calling.
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Symptoms in dogs
- Oral pain
- Drooling
- Vomiting
- Difficulty swallowing
Symptoms in cats
- Oral pain
- Drooling
- Vomiting
- Pawing at mouth
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What to do
Offer water to help rinse remaining crystals from the mouth. Most cases resolve with supportive care at home; seek vet care if swelling of the mouth or throat develops or vomiting persists beyond a few hours.
Toxic component and mechanism
The toxic component in Peace Lily is insoluble calcium oxalate crystals.
What makes this plant different
Insoluble calcium oxalate crystals act like tiny needles when chewed, embedding in oral tissue and causing immediate burning pain. Unlike true lilies (Lilium spp.), Peace Lily does not cause kidney failure in cats — the name similarity to true lilies is the single biggest source of unnecessary panic with this plant.
Plant identification
- Scientific name
- Spathiphyllum
- Family
- Araceae
- Also known as
- Peace Lily, Mauna Loa Peace Lily
- Typically found
- indoor
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Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control