Toxic
Is ragwort toxic to dogs?
Toxic. Ragwort contains toxins that can damage the liver, causing weakness, drowsiness, wobbliness and yellow gums.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Australia, Canada, New Zealand
What to do now
- Call your vet or a pet poison line now.
- Take any plant pieces away and rinse your dog's mouth with water.
- Bring a piece of the plant in a bag, or a photo, to help identify it.
Don't
- Don't make your dog vomit unless a vet tells you to.
- Don't give milk, oil, salt or other home remedies unless a vet tells you to.
Signs to watch for
- Vomiting
- Diarrhea
- Loss of appetite and weight loss
- Weakness and drowsiness
- Wobbly walking
- Yellow gums or eyes (jaundice)
- Head pressing or wandering aimlessly
When signs appear: Can be delayed; dogs may seem normal at first, then get worse over days
Why
Ragwort contains pyrrolizidine alkaloids that can damage the liver. Animals don't find it tasty and usually avoid it.
Sources
Guide reviewed 9 October 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.