Pet safety
Is Monstera Thai Constellationtoxic to cats & dogs?
Monstera deliciosa 'Thai Constellation'
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Monstera deliciosa 'Thai Constellation'
Is monstera thai constellation safe for cats and dogs?
Mildly. The ASPCA flags monstera thai constellation 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. As a cultivar of Monstera deliciosa, it carries the same toxicity the ASPCA lists for the species ("Swiss Cheese Plant", Monstera deliciosa): toxic to dogs and toxic to cats. The toxic principle is insoluble calcium oxalate crystals, released when the plant is bitten or chewed. Signs include oral irritation; intense burning of the mouth, tongue and lips; excessive drooling; vomiting; and difficulty swallowing. Serious cases are rare but keep it and any cuttings out of reach of pets, and contact your vet if ingestion is suspected.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats monstera thai constellation?
As a cultivar of Monstera deliciosa, it carries the same toxicity the ASPCA lists for the species ("Swiss Cheese Plant", Monstera deliciosa): toxic to dogs and toxic to cats. The toxic principle is insoluble calcium oxalate crystals, released when the plant is bitten or chewed. Signs include oral irritation; intense burning of the mouth, tongue and lips; excessive drooling; vomiting; and difficulty swallowing. Serious cases are rare but keep it and any cuttings out of reach of pets, and contact your vet if ingestion is suspected. 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 monstera thai constellation, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate monstera thai constellation
- Remove any plant material from your pet's mouth and move monstera thai constellation 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 monstera thai constellation 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 monstera thai constellation
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:
- Prayer plant — non-toxic to cats and dogs (care guide)
- Calathea — non-toxic to cats and dogs (care guide)
- Parlor palm — non-toxic to cats and dogs (care guide)
- Areca palm — non-toxic to cats and dogs (care guide)
Monstera Thai Constellation and pets — frequently asked questions
Is monstera thai constellation toxic to cats?
Monstera Thai Constellation (Monstera deliciosa 'Thai Constellation') is mildly toxic to pets to cats according to the ASPCA. As a cultivar of Monstera deliciosa, it carries the same toxicity the ASPCA lists for the species ("Swiss Cheese Plant", Monstera deliciosa): toxic to dogs and toxic to cats. The toxic principle is insoluble calcium oxalate crystals, released when the plant is bitten or chewed. Signs include oral irritation; intense burning of the mouth, tongue and lips; excessive drooling; vomiting; and difficulty swallowing. Serious cases are rare but keep it and any cuttings out of reach of pets, and contact your vet if ingestion is suspected. 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 monstera thai constellation toxic to dogs?
The ASPCA lists the same toxicity status for dogs as for cats: Monstera Thai Constellation is mildly toxic to pets. Dogs often chew more enthusiastically than cats, so a toxic plant like monstera thai constellation is best removed from the floor and low shelves entirely.
What happens if my pet eats monstera thai constellation?
As a cultivar of Monstera deliciosa, it carries the same toxicity the ASPCA lists for the species ("Swiss Cheese Plant", Monstera deliciosa): toxic to dogs and toxic to cats. The toxic principle is insoluble calcium oxalate crystals, released when the plant is bitten or chewed. Signs include oral irritation; intense burning of the mouth, tongue and lips; excessive drooling; vomiting; and difficulty swallowing. Serious cases are rare but keep it and any cuttings out of reach of pets, and contact your vet if ingestion is suspected. 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 monstera thai constellation, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate monstera thai constellation?
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 monstera thai constellation to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to monstera thai constellation?
If you want a similar look without the risk, good non-toxic swaps include prayer plant, calathea, parlor palm, areca palm. 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 monstera thai constellation care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete monstera thai constellation care guide, or browse the full pet-safe plant library to check another plant before you buy it.