Noted: Bleeding hearts (Dicentra spectabilis) are an extremely common plant grown all over the U.S. They show off unique flowers that are heart-shaped and white, pink, or red depending on the cultivar, notes the University of Wisconsin-Madison. This easy-to-grow plant thrives on its own with little human intervention. It will grow happily in shady gardens beneath large trees as long as the soil is well-draining.