Pet safety
Is Climbing Oleandertoxic to cats & dogs?
Strophanthus gratus
Quick verdict — at a glance
- Toxic to cats?
- Yes — toxic
- Toxic to dogs?
- Yes — toxic
- ASPCA classification
- Toxic to pets · botanical name Strophanthus gratus
Is climbing oleander safe for cats and dogs?
Avoid for a pet household. Climbing Oleander is ASPCA-listed toxic to both cats and dogs; even a small chew can drive a vet visit. Plenty of look-alikes on the non-toxic side of the list — see alternatives below. 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 Strophanthus gratus are severely toxic to pets and humans. The seeds are the most potent source of ouabain (g-strophanthin), a cardiac glycoside that inhibits the Na⁺/K⁺-ATPase pump, causing life-threatening cardiac arrhythmia. The plant is in the Apocynaceae family (same as oleander and Adenium) and shares their mechanism of cardiac toxicity. Wear gloves when handling, keep away from children and all pets, and contact emergency veterinary or poison control services immediately if ingestion is suspected.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes | Toxic to pets |
| Dogs | Yes | Toxic to pets |
What happens if a pet eats climbing oleander?
All parts of Strophanthus gratus are severely toxic to pets and humans. The seeds are the most potent source of ouabain (g-strophanthin), a cardiac glycoside that inhibits the Na⁺/K⁺-ATPase pump, causing life-threatening cardiac arrhythmia. The plant is in the Apocynaceae family (same as oleander and Adenium) and shares their mechanism of cardiac toxicity. Wear gloves when handling, keep away from children and all pets, and contact emergency veterinary or poison control services immediately 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 climbing oleander, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate climbing oleander
- Remove any plant material from your pet's mouth and move climbing oleander 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 climbing oleander 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 climbing oleander
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)
Climbing Oleander and pets — frequently asked questions
Is climbing oleander toxic to cats?
Climbing Oleander (Strophanthus gratus) is toxic to cats according to the ASPCA. All parts of Strophanthus gratus are severely toxic to pets and humans. The seeds are the most potent source of ouabain (g-strophanthin), a cardiac glycoside that inhibits the Na⁺/K⁺-ATPase pump, causing life-threatening cardiac arrhythmia. The plant is in the Apocynaceae family (same as oleander and Adenium) and shares their mechanism of cardiac toxicity. Wear gloves when handling, keep away from children and all pets, and contact emergency veterinary or poison control services immediately 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 climbing oleander toxic to dogs?
Per the ASPCA, Climbing Oleander (Strophanthus gratus) is toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like climbing oleander is best removed from the floor and low shelves entirely.
What happens if my pet eats climbing oleander?
All parts of Strophanthus gratus are severely toxic to pets and humans. The seeds are the most potent source of ouabain (g-strophanthin), a cardiac glycoside that inhibits the Na⁺/K⁺-ATPase pump, causing life-threatening cardiac arrhythmia. The plant is in the Apocynaceae family (same as oleander and Adenium) and shares their mechanism of cardiac toxicity. Wear gloves when handling, keep away from children and all pets, and contact emergency veterinary or poison control services immediately 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 climbing oleander, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate climbing oleander?
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 climbing oleander to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to climbing oleander?
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 climbing oleander care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete climbing oleander care guide, or browse the full pet-safe plant library to check another plant before you buy it.