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Is Hydrangea 'Nikko Blue' toxic to cats?

Hydrangea macrophylla 'Nikko Blue'

Mildly toxic to cats

Mildly. The ASPCA lists hydrangea 'nikko blue' as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List. Hydrangea macrophylla is listed by the ASPCA as toxic to dogs, cats, and horses. All parts contain cyanogenic glycosides that can cause vomiting, diarrhoea, lethargy, and in large quantities more serious symptoms.

What to do if your cat ate hydrangea 'nikko blue'

  1. Remove any plant material from your cat's mouth and move hydrangea 'nikko blue' out of reach.
  2. Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
  3. Do not induce vomiting unless a vet or poison-control specialist instructs you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
  5. Bring a leaf or photo of hydrangea 'nikko blue' to the appointment so it can be treated correctly.

General guidance, not veterinary advice. If you think your cat has eaten hydrangea 'nikko blue', contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.

Is hydrangea 'nikko blue' toxic to cats? — FAQ

Is hydrangea 'nikko blue' toxic to cats?

Mildly. The ASPCA lists hydrangea 'nikko blue' as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. Hydrangea macrophylla is listed by the ASPCA as toxic to dogs, cats, and horses. All parts contain cyanogenic glycosides that can cause vomiting, diarrhoea, lethargy, and in large quantities more serious symptoms.

What are the symptoms if a cat eats hydrangea 'nikko blue'?

Hydrangea macrophylla is listed by the ASPCA as toxic to dogs, cats, and horses. All parts contain cyanogenic glycosides that can cause vomiting, diarrhoea, lethargy, and in large quantities more serious symptoms. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to hydrangea 'nikko blue'.

What should I do if my cat ate hydrangea 'nikko blue'?

Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

Is hydrangea 'nikko blue' toxic to dogs too?

The ASPCA classification Growli uses applies to both cats and dogs: Hydrangea 'Nikko Blue' is mildly toxic to dogs as well. See the full hydrangea 'nikko blue' pet-safety guide for both species.

What is a cat-safe alternative to hydrangea 'nikko blue'?

For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.

Full hydrangea 'nikko blue' pet-safety