Pet emergency
My cat ate Fernleaf yarrow — what to do
Step by step
- Take fernleaf yarrow away and remove any plant material from your cat's mouth so they cannot eat more.
- Note roughly how much was eaten and when — this helps the vet judge the risk.
- Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice.
- Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.
This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.
My cat ate fernleaf yarrow — FAQ
Is fernleaf yarrow poisonous to cats?
Yes — the ASPCA lists Fernleaf yarrow (Achillea filipendulina) as mildly toxic to cats. Achillea species (milfoil/yarrow) are listed as toxic to dogs, cats, and horses by the ASPCA. Toxic principles include glycoalkaloids, monoterpenes, and sesquiterpene lactones, causing vomiting, diarrhoea, drooling, anorexia, and dermatitis. A. filipendulina is not individually named but belongs to the same genus with the same toxic principles.
How serious is it if my cat ate fernleaf yarrow?
Fernleaf yarrow is mildly toxic, so most cats get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your cat ate a lot or symptoms persist.
What symptoms should I watch for?
Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Achillea species (milfoil/yarrow) are listed as toxic to dogs, cats, and horses by the ASPCA. Toxic principles include glycoalkaloids, monoterpenes, and sesquiterpene lactones, causing vomiting, diarrhoea, drooling, anorexia, and dermatitis. A. filipendulina is not individually named but belongs to the same genus with the same toxic principles. Any worsening or persistent symptoms warrant an immediate vet visit.
Should I make my cat vomit?
No — do not induce vomiting unless a vet or the ASPCA Animal Poison Control Center specifically tells you to. The wrong action can make things worse. Call (888) 426-4435 and follow professional advice.
How do I stop this happening again?
Keep fernleaf yarrow well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.
Related
- Is fernleaf yarrow toxic to cats? — full toxicity detail
- Fernleaf yarrow and pets — the complete ASPCA pet-safety guide