Is Japanese Show Lily Toxic to Dogs and Cats? (2026)
Lilium speciosum
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Quick facts
| Toxic to dogs | Yes |
|---|---|
| Toxic to cats | Yes |
| Toxic to horses | No |
| Toxic component | Unidentified nephrotoxin (all plant parts, including pollen and vase water) |
| Onset of symptoms | 2 hours for vomiting; kidney failure develops over 24-72 hours in cats |
| Indoor / outdoor | both |
If your pet ate this plant
Both lines are staffed 24/7. A consultation fee applies to each. Do not wait for symptoms to appear before calling.
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Symptoms in dogs
- Vomiting
- Lethargy
- Reduced appetite
Symptoms in cats
- Vomiting
- Lethargy
- Loss of appetite
- Increased or decreased urination
- Dehydration
- Seizures in advanced cases
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What to do
If a cat has had ANY contact with a true lily — chewing a leaf, licking pollen off fur, or drinking vase water — treat this as a veterinary emergency immediately, even before symptoms appear. Early IV fluid therapy within 18 hours dramatically improves survival odds.
Toxic component and mechanism
The toxic component in Japanese Show Lily is unidentified nephrotoxin (all plant parts, including pollen and vase water).
What makes this plant different
A cultivated Lilium species with the same severe cat-specific nephrotoxin as every other true lily on this list — the elaborate show-flower breeding changes the bloom's appearance, not its underlying chemistry.
Plant identification
- Scientific name
- Lilium speciosum
- Family
- Liliaceae
- Also known as
- Japanese Show Lily
- Typically found
- both
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Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control