PupkeeperCaution
Lawn fertilizer and dogs: what to do
Usually mild, but some fertilizers are dangerous. They can cause vomiting and diarrhea, and some contain iron, insecticides or bone meal.
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.
- Keep your dog off the treated area and away from the bag.
- Have the product label ready when you call.
Signs to watch for
- Drooling
- Vomiting
- Diarrhea
- Hunched posture from belly pain
- Weak or wobbly back legs
- Tremors
- Trouble breathing
- Muddy-colored gums
Why
Fertilizers contain nitrogen, phosphorus and potassium and may also contain iron, weed killers or insecticides. Bone meal and blood meal can form a hard mass in the stomach.
Sources
- Pet Poison Helpline: Fertilizers
- ASPCA: Compost and Fertilizer Pet Safety Tips
- Pet Poison Helpline: Toxic Yard Items for Pets
Guide reviewed 9 October 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.