I'm no gardener, but am a fan of places like HomeDepot...This came under a heading of things not to buy at your garden center. Good to know, for sure! Cocoa Bean Mulch
Cocoa bean mulch isn't toxic to people, but if you have a pet—especially a dog—beware. This mulch comes from the hulls or shells of cocoa beans and contains
theobromine, a chemical that can cause hyperactivity, vomiting, diarrhea, and seizures in dogs. Because it smells like chocolate, your pet might find it irresistible. But it can be as
poisonous to your pooch as a chocolate candy bar. Use shredded pine bark or leaf mulch instead.