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If your cat ate shingle oak — 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.

Shingle Oak is mildly toxic to cats (ASPCA).

Pet emergency

My cat ate Shingle Oak — what to do

Step by step

  1. Take shingle oak 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 shingle oak — FAQ

Is shingle oak poisonous to cats?

Yes — the ASPCA lists Shingle Oak (Quercus imbricaria) as mildly toxic to cats. Shingle Oak contains tannins and gallic acid in its acorns and foliage, as do all Quercus species. ASPCA lists Quercus (oak) as toxic to dogs, cats, and horses. Ingestion of leaves or acorns — particularly in quantity — causes vomiting, diarrhea, and potential kidney injury. The winter-persistent marcescent leaves also remain a risk for browsing livestock when fresh foliage is absent.

How serious is it if my cat ate shingle oak?

Shingle Oak 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. Shingle Oak contains tannins and gallic acid in its acorns and foliage, as do all Quercus species. ASPCA lists Quercus (oak) as toxic to dogs, cats, and horses. Ingestion of leaves or acorns — particularly in quantity — causes vomiting, diarrhea, and potential kidney injury. The winter-persistent marcescent leaves also remain a risk for browsing livestock when fresh foliage is absent. 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 shingle oak well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.

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