Pet safety
Is Rheingold Arborvitaetoxic to cats & dogs?
Thuja occidentalis 'Rheingold'
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Thuja occidentalis 'Rheingold'
Is rheingold arborvitae safe for cats and dogs?
Mildly. The ASPCA flags rheingold arborvitae as mildly toxic to cats and dogs — a chewing pet gets oral irritation and drooling rather than a medical emergency, but it is still worth a high shelf. 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. Thuja occidentalis is not individually listed on the ASPCA toxic or non-toxic plant lists; treat with caution and verify with a vet. Foliage and oil contain thujone, which in quantity can cause drooling, vomiting, diarrhoea, and in severe cases neurological signs in dogs and cats. Poisonings are uncommon, but prevent ingestion and monitor pets.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats rheingold arborvitae?
Thuja occidentalis is not individually listed on the ASPCA toxic or non-toxic plant lists; treat with caution and verify with a vet. Foliage and oil contain thujone, which in quantity can cause drooling, vomiting, diarrhoea, and in severe cases neurological signs in dogs and cats. Poisonings are uncommon, but prevent ingestion and monitor pets. 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 rheingold arborvitae, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate rheingold arborvitae
- Remove any plant material from your pet's mouth and move rheingold arborvitae 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 rheingold arborvitae 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 rheingold arborvitae
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:
- Hoya — non-toxic to cats and dogs (care guide)
- Bromeliad — non-toxic to cats and dogs (care guide)
- Christmas cactus — non-toxic to cats and dogs (care guide)
- African violet — non-toxic to cats and dogs (care guide)
Rheingold Arborvitae and pets — frequently asked questions
Is rheingold arborvitae toxic to cats?
Rheingold Arborvitae (Thuja occidentalis 'Rheingold') is mildly toxic to cats according to the ASPCA. Thuja occidentalis is not individually listed on the ASPCA toxic or non-toxic plant lists; treat with caution and verify with a vet. Foliage and oil contain thujone, which in quantity can cause drooling, vomiting, diarrhoea, and in severe cases neurological signs in dogs and cats. Poisonings are uncommon, but prevent ingestion and monitor pets. 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 rheingold arborvitae toxic to dogs?
Per the ASPCA, Rheingold Arborvitae (Thuja occidentalis 'Rheingold') is mildly toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like rheingold arborvitae is best removed from the floor and low shelves entirely.
What happens if my pet eats rheingold arborvitae?
Thuja occidentalis is not individually listed on the ASPCA toxic or non-toxic plant lists; treat with caution and verify with a vet. Foliage and oil contain thujone, which in quantity can cause drooling, vomiting, diarrhoea, and in severe cases neurological signs in dogs and cats. Poisonings are uncommon, but prevent ingestion and monitor pets. 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 rheingold arborvitae, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate rheingold arborvitae?
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 rheingold arborvitae to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to rheingold arborvitae?
If you want a similar look without the risk, good non-toxic swaps include hoya, bromeliad, christmas cactus, african violet. 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 rheingold arborvitae care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete rheingold arborvitae care guide, or browse the full pet-safe plant library to check another plant before you buy it.