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Easter Lily Poisoning in Cats

Posted December 18, 2014 in Cat Toxins & Poisons

Dr. Justine Lee's specialty is pet poison prevention, and in this blog she discusses how dangerous the seemingly innocuous, delicate Easter lily can be for cats. For more from Dr. Lee, find her on Facebook!

This time of the year makes all veterinarians and veterinary technicians cringe… Why? As Easter approaches, there are Easter lilies abounding everywhere. (Check out the order form for these poisonous plants from my church bulletin below – yikes!)

Personally, this is my most hated type of poisoning, as my sister’s cat died from lily poisoning years ago. So my mission? To spread the word so all pet owners are aware of this horrible, dangerous poison!

Before bringing home an Easter lily plant from church, make sure you have a cat-free household. Read that as: you can’t bring them home if you own a cat!

There are benign and dangerous lilies out there, and it’s important to know the difference. 

Benign lilies include the Peace, Peruvian, and Calla lilies – these aren’t “true lilies” and don’t come from the Lilium or Hemerocallis species, so they pose less of a danger. Peace and Calla lilies contain insoluble oxalate crystals that irritate the mouth when ingested. Typically, these benign lilies only cause minor signs secondary to tissue irritation to the mouth, tongue, pharynx, and esophagus. Clinical signs from benign lilies include:

  • Drooling
  • Pawing at the mouth
  • Foaming
  • Transient vomiting
  • Difficulty breathing (rare)

If a benign lily is ingested, simply offer your cat something “tasty” like milk or canned chicken broth. This will help flush out the crystals from the mouth, resolving the clinical signs.

  • The more dangerous, potentially fatal lilies are true lilies of the Lilium or Hemerocallis species. Examples of some of these dangerous lilies include the following:
  • Tiger lilies
  • Day lilies
  • Asiatic hybrid lilies
  • Japanese show lilies
  • Easter lilies
  • Rubrum lilies
  • Stargazer lilies
  • Red lilies
  • Western lilies
  • Wood lilies

Of these dangerous lilies, keep in mind that all parts of the plant are highly toxic to cats! Even small ingestions (such as 2-3 petals or leaves) – even the pollen or water from the vase – can result in severe, acute kidney failure.

Clinical signs from the Lilium or Hemerocallis type include:

  • Vomiting
  • Anorexia
  • Drooling
  • Hiding
  • Lethargy or malaise
  • Halitosis
  • Kidney failure
  • Excessive or decreased thirst and urination
  • Dehydration
  • Painful abdomen

Other types of dangerous lilies include lily of the valley. This type does

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Justine has more than 18 years of experience in the veterinary industry and is a board-certified emergency critical care veterinary specialist and toxicologist as well as the CEO and founder of Vetgirl. She is also a founding member of IDEXX’s Pet Health Network team.