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If your cat ate bluebird mountain hydrangea — do this now

  1. Take the plant away and clear any pieces from their mouth.
  2. Do not induce vomiting unless told to by a professional.
  3. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 now.

Bluebird Mountain Hydrangea is mildly toxic to cats (ASPCA).

Pet emergency

My cat ate Bluebird Mountain Hydrangea — what to do

Step by step

  1. Take bluebird mountain hydrangea away and remove any plant material from your cat's mouth so they cannot eat more.
  2. Note roughly how much was eaten and when — this helps the vet judge the risk.
  3. Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice.
  5. Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.

This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.

My cat ate bluebird mountain hydrangea — FAQ

Is bluebird mountain hydrangea poisonous to cats?

Yes — the ASPCA lists Bluebird Mountain Hydrangea (Hydrangea serrata 'Bluebird') as mildly toxic to cats. Hydrangea serrata is not individually listed by the ASPCA, but the genus Hydrangea is listed as toxic to dogs, cats, and horses — all parts contain cyanogenic glycosides. Keep pets and children away from foliage, flowers, and especially buds.

How serious is it if my cat ate bluebird mountain hydrangea?

Bluebird Mountain Hydrangea is mildly toxic, so most cats get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your cat ate a lot or symptoms persist.

What symptoms should I watch for?

Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Hydrangea serrata is not individually listed by the ASPCA, but the genus Hydrangea is listed as toxic to dogs, cats, and horses — all parts contain cyanogenic glycosides. Keep pets and children away from foliage, flowers, and especially buds. Any worsening or persistent symptoms warrant an immediate vet visit.

Should I make my cat vomit?

No — do not induce vomiting unless a vet or the ASPCA Animal Poison Control Center specifically tells you to. The wrong action can make things worse. Call (888) 426-4435 and follow professional advice.

How do I stop this happening again?

Keep bluebird mountain hydrangea well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.

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