---
title: "Lily Poisoning in Cats"
description: "All parts of true lilies are deadly to cats — even pollen and vase water. UK guide to which flowers to avoid, symptoms, Animal PoisonLine."
url: "https://pethealth.org.uk/health/lily-poisoning-in-cats"
canonical: "https://pethealth.org.uk/health/lily-poisoning-in-cats"
date_published: "2026-06-24"
date_modified: "2026-07-10"
source: "PETHEALTH+"
---

# Lily Poisoning in Cats

True lilies — Easter, tiger, Asiatic, day, and related species — cause **acute kidney failure** in cats. Every part is toxic: petals, leaves, stems, pollen, and even vase water. If your cat chewed a lily, licked pollen, or drank from the vase, call your vet or **Animal PoisonLine on 01202 509000** and go to an emergency clinic **immediately** — treatment within eighteen hours saves lives.

## Why lilies kill cats

Cats are uniquely sensitive to unidentified toxins in plants of the **Lilium** and **Hemerocallis** (day lily) genera. Ingestion causes **acute tubular necrosis** — rapid destruction of kidney cells — leading to kidney failure within one to three days.

There is **no antidote**. Treatment relies on preventing toxin absorption and supporting kidney function with aggressive fluid therapy before irreversible damage occurs.

Dogs may develop mild gastrointestinal upset from lilies but do not suffer the same kidney failure cats do. This toxicity is **cat-specific** and among the most dangerous plant poisonings in feline medicine.

## Which plants are dangerous?

### Highly toxic true lilies (cause kidney failure in cats)

- Easter lily
- Tiger lily
- Asiatic lily
- Japanese show lily
- Rubrum lily
- Day lily (*Hemerocallis* species)
- Stargazer lily
- Wood lily

### Not true lilies — different toxicity profile

- **Peace lily, calla lily, lily of the valley** — cause oral irritation, drooling, and vomiting but not the same acute renal failure. Still keep away from cats and contact your vet if ingested.

When uncertain about the plant species, assume kidney-toxic lily exposure and seek emergency care.

## Exposure types and risk

| Exposure type | Risk to cats |
|---|---|
| Chewing leaf, petal, or stem | High — can cause kidney failure; no safe dose |
| Licking pollen from fur or paws | High — pollen alone can be enough |
| Drinking vase water | High — toxin leaches into water |
| Brushing against bouquet then grooming | High — pollen transfer via fur or owner clothing |
| Peace / calla lily (not true lily) | Oral irritation — still call your vet |

## Symptoms of lily toxicosis

**Early signs (within 2–12 hours):**

- Vomiting — often the first sign
- Loss of appetite
- Lethargy and depression

**Kidney failure (24–72 hours):**

- Increased thirst then decreased drinking
- Reduced or absent urination
- Dehydration
- Bad breath from urea buildup

Some cats show minimal early signs. **Do not wait for symptoms** — by the time kidney values rise on bloodwork, damage may be severe.

## Emergency treatment

If lily exposure is possible:

1. **Call your vet or Animal PoisonLine (01202 509000) immediately** — do not wait for symptoms
2. Bring the **plant or a photo** for identification if possible
3. If your daytime practice is closed, use the [Vets Now emergency clinic finder](https://www.vets-now.com/find-an-emergency-vet/)
4. Go to the clinic as advised — even if your cat seems well

Treatment within **18 hours of ingestion**, before azotaemia develops, offers the best prognosis:

- **Induced vomiting** if ingestion was very recent
- **Activated charcoal** to limit absorption
- **Aggressive IV fluid diuresis** for 48–72 hours minimum
- **Serial bloodwork** monitoring kidney values (creatinine, BUN, phosphorus)
- **Anti-nausea medication** and supportive care

Cats treated after established kidney failure may require prolonged hospitalisation or dialysis. Some do not survive despite intensive care.

## Prevention — no lilies in cat households

- **Never bring true lilies into a home with cats** — including bouquets from florists
- Tell friends and family lilies are forbidden gifts
- Check floral arrangements — lilies are commonly mixed with roses and greenery
- Remove lilies from gardens accessible to outdoor cats
- Wash hands and clothing after handling lilies before touching your cat

Safer flower alternatives include roses, sunflowers, orchids, and gerbera daisies — though any plant ingestion can cause mild stomach upset.

## FAQs

### Which lilies are poisonous to cats?

True lilies — including Easter, tiger, Asiatic, day, and Japanese show lilies — cause acute kidney failure. Peace and calla lilies cause oral irritation but not the same kidney toxicity. When in doubt, treat any lily exposure as an emergency.

### How much lily is toxic to cats?

Any exposure may be lethal — ingesting a single leaf, licking pollen, or drinking vase water can cause kidney failure. There is no safe amount.

### What are symptoms of lily poisoning in cats?

Vomiting, lethargy, and loss of appetite appear within hours. Kidney failure develops within one to three days, with reduced urination and dehydration. Early treatment before symptoms is critical.

### Can cats survive lily poisoning?

Yes — if treated within eighteen hours of ingestion, before kidney damage occurs. Delayed treatment after kidney failure develops carries a much poorer prognosis.

## Sources

- [PDSA — Lilies and cats](https://www.pdsa.org.uk/pet-help-and-advice/pet-health-hub)
- [International Cat Care — Lilies](https://icatcare.org/advice/lilies-and-cats/)
- [Blue Cross — Foods poisonous to cats](https://www.bluecross.org.uk/pet-advice)
- [Animal PoisonLine (UK)](https://www.animalpoisonline.co.uk/)

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Last modified: 2026-07-10