Is Clematis Toxic to Dogs and Cats? (2026)

Clematis spp.

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Mild
Mild
Varies

Quick facts

Toxic to dogsYes
Toxic to catsYes
Toxic to horsesYes
Toxic componentProtoanemonin
Onset of symptomsWithin an hour
Indoor / outdooroutdoor

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

  • Oral irritation
  • Drooling
  • Vomiting
  • Blistering with fresh plant material

Symptoms in cats

  • Oral irritation
  • Drooling
  • Vomiting

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What to do

Rinse the mouth with water; usually resolves without treatment, same mechanism and severity as Buttercup and Figwort.

Toxic component and mechanism

The toxic component in Clematis is protoanemonin.

What makes this plant different

Clematis shares its protoanemonin mechanism with Buttercup and Figwort — all three cause the same fresh-plant oral irritation that diminishes once the plant material dries out.

Plant identification

Scientific name
Clematis spp.
Family
Ranunculaceae
Also known as
Clematis, Virgin's Bower, Leatherflower
Typically found
outdoor

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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