Is Oleander Toxic to Dogs?

Yes — Oleander is severely toxic to dogs

Oleander is one of the most toxic plants in existence. A single leaf can kill a dog. Even water collected in containers near oleander can be toxic. Common in warm climates as a landscape shrub, it's responsible for numerous pet fatalities each year.

Symptoms in Dogs

If your dog eats Oleander, watch for these symptoms (onset: 1-4 hours):

Vomiting
Bloody diarrhea
Irregular heartbeat
Cold extremities
Tremors
Seizures
Death

What To Do

EMERGENCY. Immediate vet care. Cardiac monitoring required. Activated charcoal may be administered. Antidote (digoxin-specific antibodies) exists but is expensive.

This is a veterinary emergency for dogs. Call your vet or ASPCA Poison Control (888) 426-4435 immediately.

Dog-Safe Alternatives to Oleander

✓ Rose ✓ Bougainvillea ✓ Crepe Myrtle

Quick Facts

Scientific Name

Nerium oleander

Also Toxic to Cats?

Yes (severe)

Toxic Compound

Cardiac glycosides (oleandrin, neriine)

Toxic Parts

all parts, including dried leaves and smoke from burning

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Oleander toxicity profile.