Daylily
Also known as Day Lily, Orange Day Lily, Hemerocallis. One plant, one grade per pet — the verdicts below are transcribed from primary sources and human-reviewed.
Daylily plants of the Hemerocallis genus are life-threatening to cats (S4 Emergency): any amount of leaf, stem, flower, pollen, or even vase water can cause acute kidney failure, and death is possible without early treatment — the same danger as true lilies, in a different genus.
FULL VERDICT →Daylily plants of the Hemerocallis genus are classified by the ASPCA as non-toxic to dogs (S0 Safe): the kidney failure they cause in cats is not known to affect dogs — the ASPCA notes cats are the only species known to be affected.
FULL VERDICT →Care at a glance
What happens if it's eaten
Signs on record for each animal, transcribed from the cited sources.
- vomiting
- inappetence (loss of appetite)
- lethargy
- abdominal pain
- dehydration
- acute kidney failure; death is possible
no symptoms on record
When to call the vet
Immediately, on any exposure — Pet Poison Helpline states early veterinary treatment is vital for cats following any exposure to daylilies. There is no safe wait-and-see window.
FULL VERDICT →Safe swaps, graded S0
Non-toxic on record for cats — verified against the index at build time.