§ Toxic plants · Asteraceae · Checked Oct 2026
Is common yarrow toxic to cats and dogs?
Yes. Common yarrow (Achillea millefolium) is toxic to cats and dogs, according to the ASPCA Animal Poison Control Center. Plant Smart rates its effects Moderate, level 2 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, diarrhea, skin irritation, drooling, dullness or depression, peeing more than usual and loss of appetite. 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 Asteraceae plants toxic to pets
Common yarrow belongs to the Asteraceae family. ASPCA lists these relatives too.
§ 040 · Questions
Questions about common yarrow and pets
Is common yarrow toxic to cats?
Yes. ASPCA lists common yarrow as toxic to cats.
Is common yarrow toxic to dogs?
Yes. ASPCA lists common yarrow as toxic to dogs.
What happens if my pet eats common yarrow?
Signs include vomiting, diarrhea, skin irritation, drooling, dullness or depression, peeing more than usual and loss of appetite. Plant Smart rates it Moderate, level 2 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.
What else is common yarrow called?
Common yarrow is also sold or known as common yarrow, northern yarrow, mountain yarrow, alpine yarrow, california yarrow and coast yarrow.