Pet safety
Is Manchurian Walnuttoxic to cats & dogs?
Juglans mandshurica
Quick verdict — at a glance
- Toxic to cats?
- Yes — toxic
- Toxic to dogs?
- Yes — toxic
- ASPCA classification
- Toxic to pets · botanical name Juglans mandshurica
Is manchurian walnut safe for cats and dogs?
Avoid for a pet household. Manchurian Walnut is ASPCA-listed toxic to both cats and dogs; even a small chew can drive a vet visit. Plenty of look-alikes on the non-toxic side of the list — see alternatives below. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Juglans is not individually listed by the ASPCA, but Manchurian walnut shares the genus's hazards: moldy nuts and husks can carry tremorgenic mycotoxins (penitrem A) causing tremors and seizures in dogs, and the fatty kernels risk GI upset or pancreatitis. Juglone in hulls and roots is toxic to horses. Keep fallen nuts and husks away from pets and livestock; consult a vet on any ingestion.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes | Toxic to pets |
| Dogs | Yes | Toxic to pets |
What happens if a pet eats manchurian walnut?
Juglans is not individually listed by the ASPCA, but Manchurian walnut shares the genus's hazards: moldy nuts and husks can carry tremorgenic mycotoxins (penitrem A) causing tremors and seizures in dogs, and the fatty kernels risk GI upset or pancreatitis. Juglone in hulls and roots is toxic to horses. Keep fallen nuts and husks away from pets and livestock; consult a vet on any ingestion. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to manchurian walnut, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate manchurian walnut
- Remove any plant material from your pet's mouth and move manchurian walnut out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of manchurian walnut to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Pet-safe alternatives to manchurian walnut
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Cucumber — non-toxic to cats and dogs (care guide)
- Lettuce — non-toxic to cats and dogs (care guide)
- Bean — non-toxic to cats and dogs (care guide)
- Pea — non-toxic to cats and dogs (care guide)
Manchurian Walnut and pets — frequently asked questions
Is manchurian walnut toxic to cats?
Manchurian Walnut (Juglans mandshurica) is toxic to cats according to the ASPCA. Juglans is not individually listed by the ASPCA, but Manchurian walnut shares the genus's hazards: moldy nuts and husks can carry tremorgenic mycotoxins (penitrem A) causing tremors and seizures in dogs, and the fatty kernels risk GI upset or pancreatitis. Juglone in hulls and roots is toxic to horses. Keep fallen nuts and husks away from pets and livestock; consult a vet on any ingestion. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is manchurian walnut toxic to dogs?
Per the ASPCA, Manchurian Walnut (Juglans mandshurica) is toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like manchurian walnut is best removed from the floor and low shelves entirely.
What happens if my pet eats manchurian walnut?
Juglans is not individually listed by the ASPCA, but Manchurian walnut shares the genus's hazards: moldy nuts and husks can carry tremorgenic mycotoxins (penitrem A) causing tremors and seizures in dogs, and the fatty kernels risk GI upset or pancreatitis. Juglone in hulls and roots is toxic to horses. Keep fallen nuts and husks away from pets and livestock; consult a vet on any ingestion. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to manchurian walnut, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate manchurian walnut?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of manchurian walnut to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to manchurian walnut?
If you want a similar look without the risk, good non-toxic swaps include cucumber, lettuce, bean, pea. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full manchurian walnut care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete manchurian walnut care guide, or browse the full pet-safe plant library to check another plant before you buy it.