Is Achillea millefolium 'Cerise Queen' toxic to cats?

Mildly. The ASPCA lists achillea millefolium 'cerise queen' as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. Yarrow (Achillea millefolium) is ASPCA-listed as toxic to cats, dogs, and horses, causing increased salivation, vomiting, diarrhea, and dermatitis from achilleine and related compounds; this cultivar is the species itself and should be treated as toxic to pets.

Yarrow (Achillea millefolium) is ASPCA-listed as toxic to cats, dogs, and horses, causing increased salivation, vomiting, diarrhea, and dermatitis from achilleine and related compounds; this cultivar is the species itself and should be treated as toxic to pets. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to achillea millefolium 'cerise queen'.

Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

The ASPCA classification Growli uses applies to both cats and dogs: Achillea millefolium 'Cerise Queen' is mildly toxic to dogs as well. See the full achillea millefolium 'cerise queen' pet-safety guide for both species.

For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.