Lamium is one of the best choices for a tough yet showy perennial groundcover. This vigorous selection forms a spreading patch of small heart-shaped green leaves with a silvery stripe down the middle. Clusters of rosy-purple flowers appear in spring, then continue off and on until fall. Fairly tolerant of dry shade, once established. Trim or mow back in late winter. Stems will root into the ground where they touch, and any new plants that form can be easily moved in spring or fall. Also easily divided. Evergreen.