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If your cat ate american sweet flag — do this now

  1. Take the plant away and clear any pieces from their mouth.
  2. Do not induce vomiting unless told to by a professional.
  3. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 now.

American Sweet Flag is mildly toxic to cats (ASPCA).

Pet emergency

My cat ate American Sweet Flag — what to do

Step by step

  1. Take american sweet flag away and remove any plant material from your cat's mouth so they cannot eat more.
  2. Note roughly how much was eaten and when — this helps the vet judge the risk.
  3. Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice.
  5. 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 american sweet flag — FAQ

Is american sweet flag poisonous to cats?

Yes — the ASPCA lists American Sweet Flag (Acorus americanus) as mildly toxic to cats. Acorus species contain phenylpropanoid compounds including beta-asarone, which has been shown to cause vomiting, diarrhoea, and CNS effects in animals at higher doses. The North American species A. americanus contains substantially less beta-asarone than Eurasian A. calamus, but the genus is nonetheless classified as mildly-toxic as a precaution for cats and dogs. Keep pets away from rhizomes, which have the highest concentration of aromatic compounds.

How serious is it if my cat ate american sweet flag?

American Sweet Flag 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. Acorus species contain phenylpropanoid compounds including beta-asarone, which has been shown to cause vomiting, diarrhoea, and CNS effects in animals at higher doses. The North American species A. americanus contains substantially less beta-asarone than Eurasian A. calamus, but the genus is nonetheless classified as mildly-toxic as a precaution for cats and dogs. Keep pets away from rhizomes, which have the highest concentration of aromatic compounds. 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 american sweet flag well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.

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