Creeping bellflower (Campanula rapunculoides ... common selfheal or healall (Prunella vulgaris) is a creeping lawn weed that outmaneuvers turfgrasses growing on shaded sites.

However, if you were to plant this weed (yes, it's a weed!), you'd surely regret it almost immediately. You see, creeping bellflower can be very invasive. So, if you plant a few "flowers" in your ...