You like to keep plants around the house to brighten the rooms. Even if they don't produce flowers, you enjoy the pops of green. And in the yard? You enjoy a variety of plant life. But if you share a home with cats and dogs, making sure the green things you have nearby are safe is a big deal. Many of our favorite flowers, shrubs, and even herbs can cause harm. This list of toxic plants may surprise you - and cause you to reconsider where you keep your prize cuttings.