Red Campion (Silene dioica) is a perennial wildflower native to England, Ireland, and now many states in the U.S., where it grows naturally in roadsides, woodlands,and rocky slopes. It favors damp, rich soil and sun to partial shade, growing 12-18 inches tall and as wide. It bears its unique pink flowers from March to October and is also favored for its chartreuse foliage, which makes it a standout in borders. Attractive to bees and butterflies, it's said to be a favorite especially of swallowtails. Other common names: Catchfly and Red Catchfly. A white variety is called White Campion.