§ Toxic plants · Liliaceae · Checked Oct 2026
Is true lilies toxic to cats?
Yes. True lilies (Lilium spp.) is toxic to cats, according to the ASPCA Animal Poison Control Center. Plant Smart rates its effects Critical, level 4 of 4.
Get a permanent discount if you join Early Access. iPhone and Android, in the contiguous U.S.
§ 010 · Signs
What to watch for
Signs include vomiting, loss of appetite, lethargy, kidney failure, drooling, dullness or depression, peeing more than usual, weakness and lying down and unable to get up. Eaten in quantity, it can be fatal. Signs can start within hours; some take a day or more to show.
§ 020 · If it happened
What to do if your pet ate it
Call your vet or a pet poison hotline straight away, even if your pet seems fine: the ASPCA Animal Poison Control Center, (888) 426-4435, or Pet Poison Helpline, (855) 764-7661. Both are open 24 hours and charge a fee. Have the plant or a photo of it to hand, and don’t make your pet vomit unless a vet tells you to.
§ 030 · Same family
Other Liliaceae plants toxic to pets
True lilies belongs to the Liliaceae family. ASPCA lists these relatives too.
§ 040 · Questions
Questions about true lilies and pets
Is true lilies toxic to cats?
Yes. ASPCA lists true lilies as toxic to cats.
Is true lilies toxic to dogs?
ASPCA's list does not name true lilies as toxic to dogs. That is not the same as safe: call a vet if your dog eats it and seems unwell.
What happens if my pet eats true lilies?
Signs include vomiting, loss of appetite, lethargy, kidney failure, drooling, dullness or depression, peeing more than usual, weakness and lying down and unable to get up. Eaten in quantity, it can be fatal. Plant Smart rates it Critical, level 4 of 4.
What should I do if my pet ate it?
Call your vet or a pet poison hotline right away, even before signs appear: the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661. Both charge a fee. Have the plant, or a photo of it, to hand.