Pet safety
Is Russian Comfreytoxic to cats & dogs?
Symphytum x uplandicum
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Symphytum x uplandicum
Is russian comfrey safe for cats and dogs?
Use caution. Russian Comfrey is on the mildly-toxic side of the ASPCA list. Most ingestions are short-lived but unpleasant for the pet; the cost-free fix is a placement they can't reach. 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. Not individually listed in the ASPCA Toxic/Non-Toxic Plants database, so its pet status is not formally established; treat with caution and verify with a vet. Like all Symphytum, Russian comfrey contains hepatotoxic pyrrolizidine alkaloids that can cause liver damage if eaten by pets or livestock; signs include vomiting, diarrhoea, lethargy and appetite loss. Do not treat as pet-safe.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats russian comfrey?
Not individually listed in the ASPCA Toxic/Non-Toxic Plants database, so its pet status is not formally established; treat with caution and verify with a vet. Like all Symphytum, Russian comfrey contains hepatotoxic pyrrolizidine alkaloids that can cause liver damage if eaten by pets or livestock; signs include vomiting, diarrhoea, lethargy and appetite loss. Do not treat as pet-safe. 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 russian comfrey, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate russian comfrey
- Remove any plant material from your pet's mouth and move russian comfrey 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 russian comfrey 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 russian comfrey
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:
- Basil — non-toxic to cats and dogs (care guide)
- Herb garden — non-toxic to cats and dogs (care guide)
- Rosemary — non-toxic to cats and dogs (care guide)
- Thyme — non-toxic to cats and dogs (care guide)
Russian Comfrey and pets — frequently asked questions
Is russian comfrey toxic to cats?
Russian Comfrey (Symphytum x uplandicum) is mildly toxic to cats according to the ASPCA. Not individually listed in the ASPCA Toxic/Non-Toxic Plants database, so its pet status is not formally established; treat with caution and verify with a vet. Like all Symphytum, Russian comfrey contains hepatotoxic pyrrolizidine alkaloids that can cause liver damage if eaten by pets or livestock; signs include vomiting, diarrhoea, lethargy and appetite loss. Do not treat as pet-safe. 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 russian comfrey toxic to dogs?
Per the ASPCA, Russian Comfrey (Symphytum x uplandicum) is mildly toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like russian comfrey is best removed from the floor and low shelves entirely.
What happens if my pet eats russian comfrey?
Not individually listed in the ASPCA Toxic/Non-Toxic Plants database, so its pet status is not formally established; treat with caution and verify with a vet. Like all Symphytum, Russian comfrey contains hepatotoxic pyrrolizidine alkaloids that can cause liver damage if eaten by pets or livestock; signs include vomiting, diarrhoea, lethargy and appetite loss. Do not treat as pet-safe. 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 russian comfrey, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate russian comfrey?
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 russian comfrey to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to russian comfrey?
If you want a similar look without the risk, good non-toxic swaps include basil, herb garden, rosemary, thyme. 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 russian comfrey care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete russian comfrey care guide, or browse the full pet-safe plant library to check another plant before you buy it.