Is Water Hemlock toxic to dogs?

Yes. According to Plants4Pets, Water Hemlock is toxic to dogs. Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin This entry has not been manually verified yet — treat it as guidance only.

Is Water Hemlock toxic to horses?

Yes. According to Plants4Pets, Water Hemlock is toxic to horses. Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin This entry has not been manually verified yet — treat it as guidance only.

Which pets are most at risk from Water Hemlock?

Our database flags Water Hemlock as toxic to: cats, dogs, horses.

What should I do if my pet eats Water Hemlock?

Remove remaining plant material, do not induce vomiting unless a vet instructs you to, and seek professional help immediately with the plant name ready.

Is Water Hemlock toxic to cats, dogs? (Cicuta maculata)

Water Hemlock (Cicuta maculata) is marked as potentially toxic to cats, dogs, horses in the Plants4Pets database. Keep this plant out of reach of curious pets and read the species-specific notes below.

Photos of Water Hemlock (Cicuta maculata)

Water Hemlock (Cicuta maculata) — plant photo 1 of 2, pet toxicity guide

Water Hemlock (Cicuta maculata) — plant photo 2 of 2, pet toxicity guide

Is Water Hemlock toxic to cats, dogs or horses?

Cat Toxic Not verified

Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin
Dog Toxic Not verified

Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin
Horse Toxic Not verified

Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin

Community confirmations show that other users find this rating helpful. They are not verified by our team.

Water Hemlock plant details and common names

Family: Apiaceae

Also known as: cowbane, poison parsnip

Safety advice if a pet eats Water Hemlock

Many popular houseplants and garden species can cause vomiting, drooling, skin irritation or more serious symptoms when chewed by cats, dogs or horses. The information on this page is for educational purposes and does not replace a veterinary consultation.

If your pet has eaten any part of Water Hemlock (Cicuta maculata), note the amount ingested, watch for unusual behaviour and contact a veterinarian or pet poison helpline immediately.

Found outdated or incorrect data? Use the report form below or e-mail kontakt@plants4pets.pl with the plant name, species affected and your source — we review every submission.

FAQ: Water Hemlock and pet toxicity

Is Water Hemlock toxic to cats?: Yes. According to Plants4Pets, Water Hemlock is toxic to cats. Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin This entry has not been manually verified yet — treat it as guidance only.
Is Water Hemlock toxic to dogs?: Yes. According to Plants4Pets, Water Hemlock is toxic to dogs. Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin This entry has not been manually verified yet — treat it as guidance only.
Is Water Hemlock toxic to horses?: Yes. According to Plants4Pets, Water Hemlock is toxic to horses. Diarrhea, seizures, tremors, extreme stomach pain, dilated pupils, fever, bloat, respiratory depression, and death Toxic principles: Cicutoxin This entry has not been manually verified yet — treat it as guidance only.
Which pets are most at risk from Water Hemlock?: Our database flags Water Hemlock as toxic to: cats, dogs, horses.
What should I do if my pet eats Water Hemlock?: Remove remaining plant material, do not induce vomiting unless a vet instructs you to, and seek professional help immediately with the plant name ready.

Report an error or missing data

Help us keep this page accurate. You can report wrong toxicity ratings, missing plants, outdated photos or spelling mistakes.

Wrong toxicity for a cat, dog or horse
Missing or incorrect plant name
Better photo or source link
Additional veterinary or botanical reference

Include the plant name (Cicuta maculata), affected pet species and, if possible, a link to your source. We usually respond within a few business days.