Water Hemlock: Dangerous Plants for Dogs
Pet parents watch out this summer for a common, but deadly plant
If you’re hanging out with your dog by the water this summer, keep a watchful eye out for the common but extremely lethal plant water hemlock. It’s found all over the UK and can kill quickly, so it‘s no joke.
Water hemlock, also known as hemlock water-dropwort or ‘dead man‘s fingers’, has been linked to several dog deaths in Northern Irelandopens in a new tab as recently as this year. It‘s the most poisonous herb in the UK and common along most waterways.
littleKin™ is Kinship’s home just for puppy and kitten parents. Bop over to check out expert advice, new pet tools, and special deals—all curated for your newest family member.
opens in a new tabWhat is water hemlock toxicity?
Water hemlock (Oenanthe crocata) is highly toxic to both people and pets. The plant contains the poisonous chemical oenanthotoxin, which has a sweet, parsely-like odour and affects the brain and central nervous system if ingested. Just a few leaves of water hemlock can kill a dog within hours, making it one of the most lethal plants on this continent.
The plant prefers moist surroundings and grows near bodies of water, like rivers, streams, ponds and in damp meadows.
If water hemlock is consumed, symptoms begin within a matter of minutes and include drooling, muscle twitching, seizures, and dilated pupils. This quickly turns into respiratory paralysis and then death. If a non-lethal dose is consumed by dogs, there is a chance at recovery, but there may be temporary or permanent damage to the heart or skeletal muscle.
Signs of water hemlock poisoning in dogs
excessive salivation and frothing
muscle twitching
dilation of the pupils
rapid pulse
rapid breathing
tremors
violent convulsions, grand mal seizures
What does water hemlock look like?
Water hemlock is a tall branching plant that can grow three to six feet. It blooms white flowers in June and July with narrow, serrated leaves. Cow and water parsnips are often confused with water hemlock. All parts of water hemlock are poisonous, with the roots being the most toxic and the most palatableopens in a new tab.
If you see your dog eating water hemlock, try to induce vomiting and get to a veterinarian immediately. However, since the toxin acts so quickly, prevention is really the key. Learn to identify water hemlockopens in a new tab, and don‘t let your dog dig and chew wild plants.
