One of the most ubiquitous—and beautiful—landscaping plants is also one of the most poisonous. The entire azalea plant is toxic to both dogs and cats, but it will also make horses, goats, and sheep sick. Eating just a few leaves could cause vomiting and diarrhea, and the long-term effects could be serious. So, if you have pets, pass on azaleas. If you already have them in your yard, you can opt to either remove the dangerous plant or keep an eye on your animals and take them immediately to the vet if you suspect they’ve chewed on one.
Related: 15 Plants to Never Grow in Your Yard