Got a green thumb? Does your landscaping look marvelous? Do your houseplants thrive? As good as it makes you feel to look at all those healthy, lush plants, be aware that some of our favorite ones are anything but healthy for our pets.

Innocuous and ubiquitous English ivy is a killer -- a regular botanical 007. We use it for ground cover; it's in nearly every green arrangement from a florist, it's an easy houseplant to hang up in a window or let drape down off of the bomber chest in the foyer. The leaves and berries can cause severe stomach irritation, labored breathing, diarrhea, coma and death.