The Hidden Danger: Understanding the Toxicity of Lilies to Cats and Dogs


Lilies are often revered for their exquisite beauty and delicate fragrance, making them a popular choice in floral arrangements and gardens. However, beneath their captivating allure lies a hidden danger that many pet owners may not be aware of. Lilies, particularly certain species, can pose a severe threat to the health and well-being of cats and dogs. Understanding the toxicity of lilies is paramount for safeguarding our beloved furry companions.

The Toxicity of Lilies:

While lilies encompass various species belonging to the genus Lilium and Hemerocallis, it’s important to note that not all lilies are toxic to pets. However, certain types, such as Easter lilies (Lilium longiflorum), tiger lilies (Lilium lancifolium), Asiatic lilies (Lilium asiatica), and daylilies (Hemerocallis species), contain substances that can be highly toxic, especially to cats.

The toxic component of lilies primarily resides within the petals, leaves, and pollen. Even minimal exposure, such as ingestion of a small amount of plant material or pollen, can lead to severe toxicity in pets.

Symptoms of Lily Toxicity: The effects of lily toxicity can manifest rapidly and may include a range of symptoms, such as:

  1. Vomiting
  2. Diarrhea
  3. Lack of appetite
  4. Lethargy
  5. Dehydration
  6. Drooling
  7. Kidney failure
  8. Seizures
  9. Coma
  10. Death

Cats are particularly susceptible to lily toxicity, with even small ingestions potentially resulting in severe consequences. Dogs can also experience adverse effects, although they tend to be more resistant to lily poisoning compared to cats.

Treatment and Prevention: If you suspect your pet has ingested any part of a lily plant, immediate veterinary attention is crucial. Time is of the essence in mitigating the effects of toxicity, especially in cases involving kidney damage.

Treatment may involve inducing vomiting to remove any remaining plant material from the stomach, administering activated charcoal to absorb toxins, intravenous fluids to support kidney function, and symptomatic care to address other complications.

Here’s a list of some of the most toxic lilies to pets, ranked from most toxic to least:

Easter Lily (Lilium longiflorum) – Known for its stunning white blooms, the Easter lily is highly toxic to cats and can cause severe kidney damage even with small ingestions.

Asiatic Lily (Lilium asiatica) – Asiatic lilies, with their vibrant and colorful petals, pose a significant threat to cats. Ingestion can lead to kidney failure and other serious health issues.

Tiger Lily (Lilium lancifolium) – With its distinctive orange and black-spotted petals, the tiger lily contains toxins that are harmful to both cats and dogs, particularly affecting the kidneys.

Daylily (Hemerocallis species) – While not as toxic as true lilies (genus Lilium), daylilies can still cause gastrointestinal upset and discomfort if ingested by pets. However, they are less likely to cause severe kidney damage compared to other lily species.

Calla Lily (Zantedeschia species) – While calla lilies are not classified within the Lilium genus, they can still cause irritation and discomfort if ingested by pets. Symptoms may include drooling, vomiting, and difficulty swallowing.

It’s important to note that even though some lilies may be considered less toxic than others, any ingestion of lily plant material by pets should be taken seriously and evaluated by a veterinarian promptly. Additionally, this list is not exhaustive, and there may be other lily species that pose risks to pets. Therefore, it’s always best to err on the side of caution and keep all lilies out of reach of cats and dogs.

Prevention is key in protecting pets from lily toxicity.

Pet owners should take the following precautions: Avoid bringing lilies into homes or gardens where cats or dogs reside. Educate oneself and others in the household about the dangers of lilies to pets. If lilies are present in bouquets or floral arrangements, ensure they are placed in areas inaccessible to pets. Promptly remove any fallen petals or pollen from lilies to prevent accidental ingestion. Consider using pet-safe alternatives in floral decorations.

While lilies add elegance and charm to our surroundings, their beauty conceals a perilous threat to our furry companions. Awareness of the toxicity of lilies is essential for pet owners, enabling them to take proactive measures to safeguard their beloved animals. By understanding the risks associated with lilies and taking preventive actions, we can create safer environments for our pets, ensuring their health and happiness for years to come.

What to do if your pet ingests a lily?

Pets that consume any part of a lily may need immediate veterinary care. Early identification of the specific lily will provide the proper care for your pet. Bringing the plant and your pet to a veterinarian as soon as possible can bring a more favorable outcome for your pet. If you’re unsure on how to proceed you can always call the Pet Poison Helpline (800-213-6680).

Thank you to Pet Poison Helpline for parts of this article