Is Geranium Toxic to Dogs and Cats? (2026)

Pelargonium species

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Mild
Mild
Varies

Quick facts

Toxic to dogsYes
Toxic to catsYes
Toxic to horsesYes
Toxic componentGeraniol and linalool (essential oils)
Onset of symptomsWithin a few hours
Indoor / outdoorboth

If your pet ate this plant

Both lines are staffed 24/7. A consultation fee applies to each. Do not wait for symptoms to appear before calling.

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Symptoms in dogs

  • Vomiting
  • Diarrhea
  • Depression
  • Skin irritation from contact

Symptoms in cats

  • Vomiting
  • Diarrhea
  • Depression
  • Reported to be more sensitive than dogs

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What to do

Usually resolves with monitoring; cats are noted to be somewhat more sensitive to geranium oil than dogs.

Toxic component and mechanism

The toxic component in Geranium is geraniol and linalool (essential oils).

What makes this plant different

Geranium essential oil is a common ingredient in some natural flea and tick repellent products — a reminder that 'natural' doesn't necessarily mean risk-free, since the same oil causes mild toxicity if the plant itself is eaten.

Plant identification

Scientific name
Pelargonium species
Family
Geraniaceae
Also known as
Geranium, Many cultivars
Typically found
both

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See all Geraniaceae plants →

The information on this page is for general informational purposes only and is not a substitute for professional veterinary advice. Plant toxicity data is sourced from the ASPCA Toxic and Non-Toxic Plants database. If you believe your pet has ingested a toxic plant, contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) immediately. Do not wait for symptoms to appear.

Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control