Oleander
Nerium oleander
Also known as: Nerium oleander, Rose Bay, Rose Laurel
Apocynaceae
If your pet has eaten this plant, call ASPCA Poison Control: (888) 426-4435 — available 24/7.
Last reviewed: June 2026 · Source: ASPCA Animal Poison Control
Flowering shrub with clusters of white, pink, or red flowers. Extremely toxic — one of the most poisonous plants.
Toxicity
Source: ASPCA Animal Poison Control Center. Always consult a veterinarian if your pet ingests any plant.
Care Guide
Pot Size
Frequently Asked Questions
Is Oleander toxic to cats?↓
Yes, Oleander (Nerium oleander) is toxic to cats. If your cat ingests any part of this plant, contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) immediately.
Is Oleander toxic to dogs?↓
Yes, Oleander is toxic to dogs. Symptoms may include vomiting, drooling, or lethargy. Contact your vet immediately if your dog chews or eats this plant.
How often should I water Oleander?↓
Water Oleander every 14–21 days. Allow the soil to dry out completely between waterings — this plant is drought-tolerant and prone to root rot if overwatered.
How much light does Oleander need?↓
Oleander thrives in direct sunlight, ideally a south- or west-facing window. It is forgiving and adapts to a range of light conditions.
What size pot does Oleander need?↓
Use a pot between 8″ and 14″ in diameter. When repotting, choose a pot only 1–2″ larger than the current one — too much space retains excess moisture and can lead to root rot.