Can Dogs Eat Hydrangeas? No — Cyanogenic Glycosides Cause Toxicity

This food is NOT safe for dogs. Keep it away from your pet.

Hydrangeas are toxic to dogs. They contain cyanogenic glycosides that the body converts to cyanide causing vomiting, diarrhea, lethargy, and in larger amounts more serious symptoms. The flower buds contain the highest concentration of toxins.

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Warning Signs & Symptoms

Cyanogenic glycosides: vomiting, diarrhea, lethargy, depression. Large amounts: cyanide toxicity — rapid breathing, weakness, collapse. Flower buds: highest toxin concentration. All parts of the plant are toxic.

If Your Dog Ate This

Call vet if significant amount consumed. Monitor for vomiting and lethargy.

What to Avoid

all parts of hydrangea — flowers, buds, leaves, and stems

Portions & nutrition

Serving (small dog): never
Serving (medium dog): never
Serving (large dog): never
Calories (per 100g): 0
Safe frequency: Never

Source

Source: SAFEFOODFORDOGS

What You Need to Know

Hydrangeas contain amygdalin — a cyanogenic glycoside that releases hydrogen cyanide when metabolized. While the amount of cyanide from typical garden exposure is unlikely to cause fatal poisoning, it causes significant gastrointestinal symptoms and with larger ingestion (particularly flower buds) more serious systemic effects. Hydrangeas are extremely common garden and cut flower plants making them a frequent dog toxicity concern. All parts should be kept away from dogs.

Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic

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If Your Dog Ate This — Act Now

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Frequently asked questions

Is Hydrangea for Dogs safe for dogs?: No, Hydrangea for Dogs is not safe for dogs. Hydrangeas are toxic to dogs. They contain cyanogenic glycosides that the body converts to cyanide causing vomiting, diarrhea, lethargy, and in larger amounts more serious symptoms. The flower buds contain the highest concentration of toxins.
What happens if a dog eats Hydrangea for Dogs?: If a dog eats Hydrangea for Dogs, they may experience: Cyanogenic glycosides: vomiting, diarrhea, lethargy, depression. Large amounts: cyanide toxicity — rapid breathing, weakness, collapse. Flower buds: highest toxin concentration. All parts of the plant are toxic.
How much Hydrangea for Dogs can a dog eat?: Hydrangeas contain amygdalin — a cyanogenic glycoside that releases hydrogen cyanide when metabolized. While the amount of cyanide from typical garden exposure is unlikely to cause fatal poisoning, it causes significant gastrointestinal symptoms and with larger ingestion (particularly flower buds) more serious systemic effects. Hydrangeas are extremely common garden and cut flower plants making them a frequent dog toxicity concern. All parts should be kept away from dogs.

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Medical Disclaimer: This information is for educational purposes only. Always consult a licensed veterinarian before making dietary changes for your pet.