Is Iris Toxic to Cats?

Yes — Iris is mildly toxic to cats

Iris toxicity is concentrated in the rhizomes (underground stems). Dogs who dig in gardens are most at risk. Leaf and flower ingestion typically causes only mild GI upset.

Symptoms in Cats

If your cat eats Iris, watch for these symptoms (onset: 1-6 hours):

Vomiting
Diarrhea
Drooling
Lethargy
Abdominal pain

What To Do

Monitor at home for leaf ingestion. See vet if rhizome was dug up and eaten.

Cat-Safe Alternatives to Iris

✓ Sunflower ✓ Marigold ✓ Zinnia

Quick Facts

Scientific Name

Iris spp.

Also Toxic to Dogs?

Yes (mild)

Toxic Compound

Irisin, iridin (pentacyclic terpenoids)

Toxic Parts

rhizomes (bulbs), leaves

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Iris toxicity profile.