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If your cat ate heart fern — 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.

Heart Fern is mildly toxic to cats (ASPCA).

Pet emergency

My cat ate Heart Fern — what to do

Step by step

  1. Take heart fern 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 heart fern — FAQ

Is heart fern poisonous to cats?

Yes — the ASPCA lists Heart Fern (Hemionitis arifolia) as mildly toxic to cats. The heart fern is not individually listed in the ASPCA toxic and non-toxic plant database, and no species in its genus (Hemionitis/Parahemionitis) appears on the ASPCA list, so we cannot confirm an ASPCA non-toxic rating. As a true fern it is generally regarded as low-risk and many true ferns the ASPCA does list (such as Pteris in the same family) are non-toxic, but to be safe keep it away from pets and confirm with your vet before allowing access.

How serious is it if my cat ate heart fern?

Heart Fern 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. The heart fern is not individually listed in the ASPCA toxic and non-toxic plant database, and no species in its genus (Hemionitis/Parahemionitis) appears on the ASPCA list, so we cannot confirm an ASPCA non-toxic rating. As a true fern it is generally regarded as low-risk and many true ferns the ASPCA does list (such as Pteris in the same family) are non-toxic, but to be safe keep it away from pets and confirm with your vet before allowing access. 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 heart fern well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.

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