1 / 15
Lily of the Valley
Breaking Bad fans will remember that Walter White used this sweet-looking plant for some not-so-sweet deeds. Consuming its toxic compounds - called cardiac glycosides - can send people to the hospital with symptoms like dizziness, vomiting, rashes, and diarrhea. If left untreated, those little bells can even cause death.
Getty
Keep your kids and pets away from these popular picks.
From Good Housekeeping