Call ASPCA Poison Control: (888) 426-4435 or go to your nearest emergency vet. Do not wait for symptoms.
All true lilies (Lilium and Hemerocallis species) are severely toxic to cats. Even a small amount — a few petals or pollen grains, or water from a vase — can cause acute kidney failure within 24–72 hours.
Maine Coons are one of the largest domestic breeds, so their absolute body weight means they require a higher total dose to show symptoms — but their sheer size also means they can eat more before you notice.
Why Does Breed Matter for Lily Poisoning?
Toxic dose thresholds are calculated per kilogram of body weight. A Maine Coon typically weighs 5–8 kg, which directly determines their exposure level relative to body size. Beyond weight, Maine Coons have specific traits — outlined in the breed profile above — that can affect how quickly symptoms develop and how severe they become.
When you call Poison Control, always give your cat's exact current weight, not a breed average.
How Much Lily Poisoning Is Toxic to a Maine Coon?
These thresholds are based on the typical Maine Coon weight range of 5–8 kg. Always use your cat's actual weight for the most accurate estimate.
| Cat weight | Mild signs | Serious signs | Potentially fatal |
|---|---|---|---|
| Any exposure | Any lily contact | Any lily contact | Any lily contact — ALL are dangerous |
ℹ️ ⚠️ No safe dose exists for lily exposure in cats. Any contact — pollen, petals, leaves, vase water — warrants immediate emergency treatment.
Symptoms of Lily Poisoning in Maine Coons
Onset: 24–72 hrs (kidney failure). Watch for:
What to Do If Your Maine Coon Was Exposed to Lily Poisoning
- Stay calm and note the exposure details — what was consumed, how much, and when. Your cat's current weight is critical information.
- Call ASPCA Poison Control immediately — (888) 426-4435. Available 24/7.
- Do not induce vomiting unless specifically instructed by a vet or Poison Control.
- Go to an emergency vet if symptoms are already present or Poison Control advises it.
- Bring the packaging or a sample if possible.
Special Considerations for Maine Coons
Maine Coons are one of the largest domestic breeds, so their absolute body weight means they require a higher total dose to show symptoms — but their sheer size also means they can eat more before you notice. Always inform your vet of your cat's breed-specific characteristics so they can tailor treatment accordingly.
Frequently Asked Questions
Yes, if treated quickly (within 6–18 hours). With aggressive IV fluid therapy, decontamination, and supportive care, full recovery is possible. Delays dramatically worsen outcomes. Time is critical.
True lilies (Lilium, Hemerocallis) are the most deadly. Peace lilies and calla lilies cause different — less severe — symptoms. But any lily exposure should be treated as an emergency until confirmed otherwise.
Pollen from lilies can transfer to fur and be ingested during grooming. Even minimal pollen exposure is enough to cause kidney failure. Any contact with a lily warrants a vet call.
Never wait. The treatment window for lily poisoning is narrow. Call Poison Control immediately even if your cat seems fine — by the time symptoms appear, kidney damage may already be occurring.