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Is English Walnut 'Hartley' toxic to dogs?

Juglans regia 'Hartley'

Toxic to dogs

Yes — english walnut 'hartley' is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. This classification follows the ASPCA Toxic and Non-Toxic Plant List. The ASPCA lists Black Walnut (Juglans nigra), the same genus, as toxic to dogs and horses (non-toxic to cats); horses develop laminitis and colic, and moldy nuts and hulls cause tremors and seizures in dogs. English walnut shares juglone in all parts, and fallen nuts readily grow Penicillium mould producing tremorgenic mycotoxins (Penitrem A) that cause vomiting, tremors and seizures in dogs. Treat as toxic, keep dropped nuts and hulls away from pets and horses, and seek veterinary care on ingestion.

What to do if your dog ate english walnut 'hartley'

  1. Remove any plant material from your dog's mouth and move english walnut 'hartley' 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 english walnut 'hartley' to the appointment so it can be treated correctly.

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

Is english walnut 'hartley' toxic to dogs? — FAQ

Is english walnut 'hartley' toxic to dogs?

Yes — english walnut 'hartley' is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. The ASPCA lists Black Walnut (Juglans nigra), the same genus, as toxic to dogs and horses (non-toxic to cats); horses develop laminitis and colic, and moldy nuts and hulls cause tremors and seizures in dogs. English walnut shares juglone in all parts, and fallen nuts readily grow Penicillium mould producing tremorgenic mycotoxins (Penitrem A) that cause vomiting, tremors and seizures in dogs. Treat as toxic, keep dropped nuts and hulls away from pets and horses, and seek veterinary care on ingestion.

What are the symptoms if a dog eats english walnut 'hartley'?

The ASPCA lists Black Walnut (Juglans nigra), the same genus, as toxic to dogs and horses (non-toxic to cats); horses develop laminitis and colic, and moldy nuts and hulls cause tremors and seizures in dogs. English walnut shares juglone in all parts, and fallen nuts readily grow Penicillium mould producing tremorgenic mycotoxins (Penitrem A) that cause vomiting, tremors and seizures in dogs. Treat as toxic, keep dropped nuts and hulls away from pets and horses, and seek veterinary care on ingestion. 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 dog has had access to english walnut 'hartley'.

What should I do if my dog ate english walnut 'hartley'?

Stay calm. Remove any plant from your dog'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 english walnut 'hartley' toxic to cats too?

The ASPCA classification Growli uses applies to both cats and dogs: English Walnut 'Hartley' is toxic to cats as well. See the full english walnut 'hartley' pet-safety guide for both species.

What is a dog-safe alternative to english walnut 'hartley'?

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

Full english walnut 'hartley' pet-safety