Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
cat safety reference
Is Hyacinth safe for cats?
Hyacinthus orientalis
Hyacinthus orientalis is a popular spring-flowering bulb known for its fragrant, dense clusters of bell-shaped flowers. It contains calcium oxalate crystals and alkaloids that can cause irritation if ingested by pets.
Common HyacinthDutch HyacinthHyacinthus orientalis
- Light
- Bright indirect light
- Habit
- Bulbous perennial
- Care
- Moderate
Safety status
What this means for your cat
Cats that bite into a hyacinth bulb get the worst of this plant — bulbs hold the highest concentration of narcissus-like alkaloids and irritant crystals, and one chewed bulb can put a cat into intense vomiting and tremors. Foliage and flowers are toxic too, but mostly cause drooling and stomach upset.
What to watch for
Most common in cats: profuse drooling, retching, and vomiting (sometimes with blood after a bulb chew), followed by diarrhea and depression. Watch for tremors, weakness, or changes in breathing — those are signs of a larger ingestion and need immediate veterinary attention.
Time window
Onset is typically within 1–2 hours of ingestion (often sooner with bulbs, because the irritant crystals act on contact). With supportive care — anti-nausea medication, fluids, mouth rinsing — most cats recover within 24–48 hours. Bulb ingestions can take longer.
When to call the vet
Call immediately if your cat chewed or ingested any part of a bulb — that's the high-risk exposure. For exposure to leaves or petals, call if drooling, vomiting, or lethargy lasts more than a few hours, or any time you see tremors, blood in vomit, or labored breathing. Pet Poison Helpline (855-764-7661) and your veterinarian can advise on whether to come in.
First aid at home
Rinse your cat's mouth gently with lukewarm water if she will tolerate it, and remove any remaining plant material from the area. Do NOT try to make your cat vomit at home — there is no safe over-the-counter way to induce vomiting in cats, and it can cause more harm than the plant. Call your vet or Pet Poison Helpline (855-764-7661) before giving anything by mouth.
Sources: ASPCA, Pet Poison Helpline, VCA Animal Hospitals.
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
Intense burning and irritation of the mouth, tongue, and lips, excessive drooling, vomiting, and difficulty swallowing.
Escalation note
The bulbs are the most toxic part of the plant. If your cat has ingested any portion of this plant, please contact your veterinarian or a pet poison control center immediately.
Safer alternatives
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Source evidence
ASPCA Toxic Plant List
toxicology · 99% reliability
Hyacinth contains allergenic lactones and calcium oxalate crystals which can cause intense irritation to the mouth and gastrointestinal tract.
Questions about Hyacinth
Are hyacinths toxic to cats?
Yes, hyacinths (Hyacinthus orientalis) are toxic to cats. The plant contains calcium oxalate crystals and alkaloids that cause intense burning and irritation of the mouth, tongue, and lips, along with excessive drooling, vomiting, and difficulty swallowing.
What part of a hyacinth is most dangerous to cats?
The bulb is the most toxic part. While leaves and petals can still cause irritation and GI upset, a cat that chews or ingests a bulb faces a higher risk of severe symptoms — including vomiting with blood, tremors, and weakness — and warrants an immediate call to your vet or the ASPCA Animal Poison Control Center at (888) 426-4435.
What should I do if my cat ate a hyacinth?
Gently rinse your cat's mouth with lukewarm water if she will tolerate it, and remove any remaining plant material. Do NOT try to induce vomiting at home — it is not safe to do in cats. Call your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 right away for guidance.
How quickly do hyacinth poisoning symptoms appear in cats, and how long do they last?
Symptoms typically appear within 1–2 hours of ingestion, often sooner with bulb exposure because the irritant crystals act on contact. With supportive care such as anti-nausea medication and fluids, most cats recover within 24–48 hours, though bulb ingestions can take longer. Seek immediate veterinary attention if you see tremors, weakness, blood in vomit, or labored breathing.
Same cat verdict
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