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Pet safety

Is Sessile Oak toxic to cats?

Quercus petraea

Mildly toxic to cats

Mildly. The ASPCA lists sessile oak as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List. All parts of Quercus species — especially young leaves and acorns — contain tannins and gallic acid that are toxic to horses, cattle, sheep, and dogs if ingested in quantity. Toxicity causes gastrointestinal upset and, in large amounts, kidney damage. ASPCA lists Quercus (oak) as toxic to dogs, cats, and horses. Keep pets and livestock away from fallen acorns.

What to do if your cat ate sessile oak

  1. Remove any plant material from your cat's mouth and move sessile oak out of reach.
  2. Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
  3. Do not induce vomiting unless a vet or poison-control specialist instructs you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
  5. Bring a leaf or photo of sessile oak to the appointment so it can be treated correctly.

General guidance, not veterinary advice. If you think your cat has eaten sessile oak, contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.

Is sessile oak toxic to cats? — FAQ

Is sessile oak toxic to cats?

Mildly. The ASPCA lists sessile oak as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. All parts of Quercus species — especially young leaves and acorns — contain tannins and gallic acid that are toxic to horses, cattle, sheep, and dogs if ingested in quantity. Toxicity causes gastrointestinal upset and, in large amounts, kidney damage. ASPCA lists Quercus (oak) as toxic to dogs, cats, and horses. Keep pets and livestock away from fallen acorns.

What are the symptoms if a cat eats sessile oak?

All parts of Quercus species — especially young leaves and acorns — contain tannins and gallic acid that are toxic to horses, cattle, sheep, and dogs if ingested in quantity. Toxicity causes gastrointestinal upset and, in large amounts, kidney damage. ASPCA lists Quercus (oak) as toxic to dogs, cats, and horses. Keep pets and livestock away from fallen acorns. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to sessile oak.

What should I do if my cat ate sessile oak?

Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

Is sessile oak toxic to dogs too?

The ASPCA classification Growli uses applies to both cats and dogs: Sessile Oak is mildly toxic to dogs as well. See the full sessile oak pet-safety guide for both species.

What is a cat-safe alternative to sessile oak?

For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.

Full sessile oak pet-safety