Pet safety
Is Bigleaf Hydrangea 'Nikko Blue' toxic to dogs?
Hydrangea macrophylla 'Nikko Blue'
Yes — bigleaf hydrangea 'nikko blue' is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. This classification follows the ASPCA Toxic and Non-Toxic Plant List. ASPCA lists Hydrangea as toxic to cats, dogs and horses. The leaves, buds and flowers contain cyanogenic glycosides; ingestion of significant amounts can cause vomiting, diarrhoea, lethargy and, rarely, more serious cyanide-related signs.
What to do if your dog ate bigleaf hydrangea 'nikko blue'
- Remove any plant material from your dog's mouth and move bigleaf hydrangea 'nikko blue' out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of bigleaf hydrangea 'nikko blue' to the appointment so it can be treated correctly.
General guidance, not veterinary advice. If you think your dog has eaten bigleaf 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 bigleaf hydrangea 'nikko blue' toxic to dogs? — FAQ
Is bigleaf hydrangea 'nikko blue' toxic to dogs?
Yes — bigleaf hydrangea 'nikko blue' is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. ASPCA lists Hydrangea as toxic to cats, dogs and horses. The leaves, buds and flowers contain cyanogenic glycosides; ingestion of significant amounts can cause vomiting, diarrhoea, lethargy and, rarely, more serious cyanide-related signs.
What are the symptoms if a dog eats bigleaf hydrangea 'nikko blue'?
ASPCA lists Hydrangea as toxic to cats, dogs and horses. The leaves, buds and flowers contain cyanogenic glycosides; ingestion of significant amounts can cause vomiting, diarrhoea, lethargy and, rarely, more serious cyanide-related signs. 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 dog has had access to bigleaf hydrangea 'nikko blue'.
What should I do if my dog ate bigleaf hydrangea 'nikko blue'?
Stay calm. Remove any plant from your dog'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 bigleaf hydrangea 'nikko blue' toxic to cats too?
The ASPCA classification Growli uses applies to both cats and dogs: Bigleaf Hydrangea 'Nikko Blue' is toxic to cats as well. See the full bigleaf hydrangea 'nikko blue' pet-safety guide for both species.
What is a dog-safe alternative to bigleaf hydrangea 'nikko blue'?
For a similar look without the risk, see the best dogs-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.
Full bigleaf hydrangea 'nikko blue' pet-safety
- Is bigleaf hydrangea 'nikko blue' toxic to cats and dogs? — the full guide for both pets
- Is bigleaf hydrangea 'nikko blue' toxic to cats?
- My dog ate bigleaf hydrangea 'nikko blue' — emergency steps
- Best dogs-safe plants — the full ASPCA non-toxic list
- Complete bigleaf hydrangea 'nikko blue' care guide