Poisonous to: Cats
Level of toxicity: Generally moderate to severe
Common signs to watch for:
- Inappropriate urination or thirst
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 contain insoluble oxalate crystals that cause minor signs such as tissue irritation to the mouth, tongue, pharynx, and esophagus. Clinical signs of drooling, pawing at the mouth, foaming, and vomiting may be transiently seen.
The more dangerous, potentially fatal lilies are true lilies of the Lilium or Hemerocallis species. Examples of some of these dangerous lilies include the tiger, day, Asiatic hybrid, Easter, Japanese Show, rubrum, stargazer, red, Western, and wood lilies – all of which 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.
Other types of dangerous lilies include lily of the valley. This type does not cause kidney failure, but can cause life-threatening heart arrhythmias and death when ingested by dogs or cats.
If your cat is seen consuming any part of a lily, bring your cat (and the plant) immediately to a veterinarian for medical care. The sooner you bring in your cat, the better and more efficiently the lily poisoning can be treated. Decontamination (like inducing vomiting and giving binders like activated charcoal) are imperative in the early toxic stage, while aggressive intravenous fluid therapy, kidney function monitoring tests, and supportive care can greatly improve the prognosis. Intravenous fluids must be started within an 18 hour window for the best outcome.
Poison type: Plants
Alternate names: Lilies, Easter lily, tiger lily, rubrum lily, red lily, wood lily, Western lily, stargazer lily, daylily, Japanese show lily, Asiatic lily, Asiatic hydrid lily, Lilium longiflorum, Lilium tigrinum, Lilium speciosum, Lilium auratum, Lilium lancifolimu, Lilium umbellantum, Hemerocallis