Pet safety
Is Western Columbinetoxic to cats & dogs?
Aquilegia formosa
Quick verdict — at a glance
- Toxic to cats?
- Yes — toxic
- Toxic to dogs?
- Yes — toxic
- ASPCA classification
- Toxic to pets · botanical name Aquilegia formosa
Is western columbine safe for cats and dogs?
No — western columbine is toxic to cats and dogs. Keep it well away from any pet that chews plants; reactions can be significant. 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. All parts of Aquilegia formosa — particularly the seeds and roots — contain isoquinoline alkaloids and cyanogenic glycosides that are toxic to dogs, cats, and humans if ingested in significant quantities. Seeds are the most toxic portion. Symptoms include vomiting, diarrhoea, and in serious cases cardiac effects. The plant tastes extremely bitter, which limits voluntary ingestion by pets, but risk remains. Not individually listed on the ASPCA toxic plant list for this species, but veterinary sources consistently flag Aquilegia as toxic to pets and humans. Wear gloves when handling and keep children and pets away from plants during seeding.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes | Toxic to pets |
| Dogs | Yes | Toxic to pets |
What happens if a pet eats western columbine?
All parts of Aquilegia formosa — particularly the seeds and roots — contain isoquinoline alkaloids and cyanogenic glycosides that are toxic to dogs, cats, and humans if ingested in significant quantities. Seeds are the most toxic portion. Symptoms include vomiting, diarrhoea, and in serious cases cardiac effects. The plant tastes extremely bitter, which limits voluntary ingestion by pets, but risk remains. Not individually listed on the ASPCA toxic plant list for this species, but veterinary sources consistently flag Aquilegia as toxic to pets and humans. Wear gloves when handling and keep children and pets away from plants during seeding. 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 western columbine, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate western columbine
- Remove any plant material from your pet's mouth and move western columbine 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 western columbine 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 western columbine
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)
Western Columbine and pets — frequently asked questions
Is western columbine toxic to cats?
Western Columbine (Aquilegia formosa) is toxic to cats according to the ASPCA. All parts of Aquilegia formosa — particularly the seeds and roots — contain isoquinoline alkaloids and cyanogenic glycosides that are toxic to dogs, cats, and humans if ingested in significant quantities. Seeds are the most toxic portion. Symptoms include vomiting, diarrhoea, and in serious cases cardiac effects. The plant tastes extremely bitter, which limits voluntary ingestion by pets, but risk remains. Not individually listed on the ASPCA toxic plant list for this species, but veterinary sources consistently flag Aquilegia as toxic to pets and humans. Wear gloves when handling and keep children and pets away from plants during seeding. 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 western columbine toxic to dogs?
Per the ASPCA, Western Columbine (Aquilegia formosa) is toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like western columbine is best removed from the floor and low shelves entirely.
What happens if my pet eats western columbine?
All parts of Aquilegia formosa — particularly the seeds and roots — contain isoquinoline alkaloids and cyanogenic glycosides that are toxic to dogs, cats, and humans if ingested in significant quantities. Seeds are the most toxic portion. Symptoms include vomiting, diarrhoea, and in serious cases cardiac effects. The plant tastes extremely bitter, which limits voluntary ingestion by pets, but risk remains. Not individually listed on the ASPCA toxic plant list for this species, but veterinary sources consistently flag Aquilegia as toxic to pets and humans. Wear gloves when handling and keep children and pets away from plants during seeding. 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 western columbine, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate western columbine?
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 western columbine to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to western columbine?
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 western columbine care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete western columbine care guide, or browse the full pet-safe plant library to check another plant before you buy it.