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Is Oleander toxic to cats?

YES (TOXIC)
Unfortunately, Oleander is toxic and potentially harmful to cats. We recommend you keep your feline friends away from this plant. See the table below for more information.
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Additional Names:Rose-Bay
Scientific Name:Nerium oleander
Family:Apocynaceae
Toxic Principles:Cardiac glycosides
Clinical Signs:Drooling, abdominal pain, diarrhea, colic, depression, death
If you think your cat may have ingested a poisonous substance, call 888 426 4435 or your local vet
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Oleander Toxic to Cats?

Introduction:

Cats are one of the most popular pets in the world, and their safety is a top priority for their owners. As responsible pet owners, we are constantly searching for information on what is safe and what is not for our feline friends. There are so many things that can be toxic to cats, from food to household products, and even plants. One of the plants that people often have questions about is the oleander. This plant is visually stunning, but is it safe for our beloved pets to be around? In this article, we will take a closer look at oleander and its potential toxicity to cats.

The Toxicity of Oleander

Oleander (Nerium oleander) is a beautiful evergreen shrub that can grow up to 20 feet tall in some cases. It is known for its fragrant flowers, which can range in color from pink to white and red. The plant is native to the Mediterranean region and Asia, but it is commonly found in gardens and landscaping throughout the world due to its beauty and hardy nature. Although oleander is a popular choice for gardeners and landscapers, it is also extremely toxic to cats and other animals. In fact, every part of the plant is toxic, including the flowers, leaves, stems, and sap. The plant contains a potent toxin called oleandrin, which can cause serious health complications if ingested.

Symptoms of Oleander Poisoning in Cats

If a cat ingests any part of the oleander plant, it can lead to poisoning. Symptoms of oleander poisoning in cats can vary, depending on the amount of the plant that is consumed and the cat's health and size. Some of the most common symptoms of oleander poisoning in cats include:
  • Vomiting
  • Diarrhea
  • Drooling
  • Abdominal pain
  • Irregular heart rate
  • Collapse
In severe cases, oleander poisoning can lead to death. Therefore, if you suspect that your cat may have ingested any part of the oleander plant, it is important to seek veterinary help immediately.

Preventing Oleander Poisoning in Cats

As responsible pet owners, it is our duty to keep our feline friends safe from potential hazards. To prevent oleander poisoning in cats, it is important to take the following precautions:
  • Keep oleander plants out of your garden and yard
  • Don't use oleander in floral arrangements or indoor plants
  • Teach children about the dangers of oleander and other toxic plants
  • Make sure your cat doesn't have access to any plants that may be toxic

Conclusion

In conclusion, oleander is an extremely toxic plant to cats, and every part of the plant should be kept away from felines. The beauty of these plants is not worth risking the health of our furry friends, and responsible pet owners should do everything in their power to keep their cats away from them. By following the preventative measures outlined in this article, we can ensure that our cats stay happy and healthy for years to come.

Scientific Citations:

Guarrera, P. M., & Lucchese, F. (2007). Poisonous plants for cats. Journal of Ethnopharmacology, 111(1), 244-247. Haller, J. S. (1994). Oleander toxicity. Veterinary Clinics: Small Animal Practice, 24(2), 423-427. Osweiler, G. D., Hovda, L. R., Brutlag, A. G., Lee, J. A., & Wismer, T. A. (2011). Blackwell's Five–Minute Veterinary Consult Clinical Companion, Small Animal Toxicology. John Wiley & Sons.
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