Calla Lily — (c) Bruce Calvert, some rights reserved (CC BY), uploaded by Bruce Calvert
Photo by (c) Bruce Calvert, some rights reserved (CC BY), uploaded by Bruce CalvertiNaturalistCC BY
cat safety reference

Is Calla Lily safe for cats?

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.

Calla LilyLily of the NilePig LilyZantedeschia aethiopica
Light
Bright indirect light
Habit
Rhizomatous 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

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.

What to watch for

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.

Time window

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.

When to call the vet

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.

First aid at home

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.

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. Please contact your veterinarian or a pet poison control center if ingestion is suspected.

Safer alternatives

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Calla Lily contains insoluble calcium oxalate crystals that cause oral irritation.

Cats & dogs pagedogs pageMy cat ate Calla Lily

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