Any kind of exposure to any part of the lily of the valley can cause heart problems for dogs. Eating a little bit of the plant can make your dog throw up and cause changes in heart rate and rhythm, low blood pressure, disorientation, seizures, or a coma.
Source: Chewy Editorial, 2020.
There are insurance options for this kind of plant poisoning. Check it out on Wag's website: https://wagwalking.com/condition/lily-of-the-valley-poisoning
Photo by Vitolda Klein on Unsplash