Pet safety
Is Celeriac 'Monarch'toxic to cats & dogs?
Apium graveolens var. rapaceum 'Monarch'
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Apium graveolens var. rapaceum 'Monarch'
Is celeriac 'monarch' safe for cats and dogs?
Use caution. Celeriac 'Monarch' 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. Celery (Apium graveolens) is generally considered non-toxic to dogs and cats in ASPCA poison-control references, but the rapaceum variety is not individually listed, and the foliage carries furanocoumarins (psoralens) that can cause contact phytophotodermatitis. Treat the leaves with caution, handle with gloves in sunlight, and verify with a vet rather than assuming complete pet-safe status.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats celeriac 'monarch'?
Celery (Apium graveolens) is generally considered non-toxic to dogs and cats in ASPCA poison-control references, but the rapaceum variety is not individually listed, and the foliage carries furanocoumarins (psoralens) that can cause contact phytophotodermatitis. Treat the leaves with caution, handle with gloves in sunlight, and verify with a vet rather than assuming complete pet-safe status. 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 celeriac 'monarch', treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate celeriac 'monarch'
- Remove any plant material from your pet's mouth and move celeriac 'monarch' 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 celeriac 'monarch' 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 celeriac 'monarch'
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)
Celeriac 'Monarch' and pets — frequently asked questions
Is celeriac 'monarch' toxic to cats?
Celeriac 'Monarch' (Apium graveolens var. rapaceum 'Monarch') is mildly toxic to cats according to the ASPCA. Celery (Apium graveolens) is generally considered non-toxic to dogs and cats in ASPCA poison-control references, but the rapaceum variety is not individually listed, and the foliage carries furanocoumarins (psoralens) that can cause contact phytophotodermatitis. Treat the leaves with caution, handle with gloves in sunlight, and verify with a vet rather than assuming complete pet-safe status. 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 celeriac 'monarch' toxic to dogs?
Per the ASPCA, Celeriac 'Monarch' (Apium graveolens var. rapaceum 'Monarch') is mildly toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like celeriac 'monarch' is best removed from the floor and low shelves entirely.
What happens if my pet eats celeriac 'monarch'?
Celery (Apium graveolens) is generally considered non-toxic to dogs and cats in ASPCA poison-control references, but the rapaceum variety is not individually listed, and the foliage carries furanocoumarins (psoralens) that can cause contact phytophotodermatitis. Treat the leaves with caution, handle with gloves in sunlight, and verify with a vet rather than assuming complete pet-safe status. 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 celeriac 'monarch', treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate celeriac 'monarch'?
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 celeriac 'monarch' to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to celeriac 'monarch'?
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 celeriac 'monarch' care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete celeriac 'monarch' care guide, or browse the full pet-safe plant library to check another plant before you buy it.