Are Lilies Toxic to Cats?

Lilium and Hemerocallis species

True lilies (Easter, Asiatic, Oriental, tiger lilies) and daylilies are in a category of their own: a cat does not have to eat the flower to be poisoned. Grooming pollen off its fur, drinking the vase water or brushing against a bouquet can be enough to cause acute kidney injury, and the damage is often irreversible by the time symptoms appear.

This is the one plant where the correct response to any suspicion is an emergency vet, not observation. Cats treated within the first hours stand a good chance; cats left until they are quiet and off their food often do not.

Which parts are dangerous

• pollen
• petals
• leaves
• stem
• vase water

What to watch for in the UK

• Supermarket and garage bouquets are the classic source — they are often lilies without a warning label.
• Pollen drops onto the floor and onto a cat's coat; a cat grooming itself has then been exposed.
• Daylilies (Hemerocallis) grow in British gardens and are just as dangerous.
• Peace lilies and calla lilies are not true lilies — they irritate the mouth but do not cause kidney failure.

If your cat has already chewed it

1. Go to an emergency vet immediately, even if the cat seems completely normal.
2. Take the flower, a photo and any packaging; say which part may have been touched.
3. Do not wait for vomiting — by the time it starts, kidney damage is already happening.

Take a photo of the plant, and a cutting if you can do it safely — identification is half of the vet's decision. Out of hours, use your practice's emergency number. This page explains risk; it cannot diagnose your cat and it contains no home treatments.

If your cat has vomited after eating a plant, see the cat vomiting guide and, if there is blood, vomiting blood. For a general red-flag checklist, use sick cat symptoms. If the worry is food rather than a plant, the can cats eat guide covers 36 everyday foods.

Related plants

Browse the full UK plant checklist (72 plants).