Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources

Zantedeschia aethiopica
The Arum Lily is a popular ornamental plant known for its striking white spathes, but it contains insoluble calcium oxalate crystals that can cause irritation upon ingestion. It is considered toxic to both cats and dogs.
Safety status
Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
Calla lily isn't a 'true lily' — it doesn't cause the kidney failure that Easter or tiger lilies do in cats. It's an Araceae plant with calcium-oxalate raphides, so a chew triggers immediate mouth pain rather than a systemic crisis. Painful, but not the lily emergency many owners fear.
Intense pawing at the mouth and heavy drooling within minutes of a chew. Look for redness or swelling of the lips, tongue, and gums; vomiting; refusal to eat; and head-shaking. Rarely, swelling extends to the back of the throat — voice change or labored breathing means it has gone serious.
Pain and drooling start within minutes of biting the plant. Most cases settle in a few hours to 24 hours with supportive care; airway swelling, when it occurs, can develop unpredictably.
Call your vet, or ASPCA Poison Control at (888) 426-4435, if drooling lasts more than an hour, you see visible swelling, your cat won't eat or drink, or vomiting persists. Any sign of difficulty breathing or swallowing is an emergency — go immediately. Mention the plant by name; the team can rule out 'true lily' (Lilium/Hemerocallis) toxicity quickly.
Wipe plant fragments from the mouth with a damp cloth and offer cold water. A small amount of milk or plain yogurt may help bind the oxalate crystals and reduce the burning. Do not induce vomiting unless your vet directs it.
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.
Cats — concern 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. Please contact your veterinarian or a pet poison control center if ingestion is suspected.
Safer alternatives
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ASPCA Toxic Plant List
toxicology · 99% reliability
Calla Lily contains insoluble calcium oxalate crystals that cause oral irritation.
Same cat verdict

Lily of the Valley is a popular spring-flowering perennial known for its fragrant, bell-shaped white flowers. It contains cardiac glycosides that are highly toxic to pets if ingested.
Potentially toxic for cats & dogs.

American Mandrake is a perennial woodland plant known for its umbrella-like leaves and single white flower. It contains podophyllotoxin, which is highly irritating and potentially dangerous if ingested by pets.
Potentially toxic for cats & dogs.

Monstera deliciosa is a popular tropical houseplant known for its large, fenestrated leaves and vining growth habit. It contains insoluble calcium oxalate crystals that can cause irritation if ingested by pets.
Potentially toxic for cats & dogs.

Dracaena trifasciata is a popular, hardy houseplant known for its stiff, sword-like leaves with striking yellow margins. It is widely appreciated for its air-purifying qualities and ability to thrive in various indoor conditions.
Potentially toxic for cats & dogs.