This dead nettle is called Beacon Silver because of the silver markings on its leaves, which can be quite bright in shady spots, like a silver beacon.

Beacon Silver dead nettle is a low-growing perennial groundcover that thrives in shady areas. It typically reaches a height of about 6 to 12 inches and a spread of about 2 feet. In the early summer it bears small pinkish-mauve flowers above the foliage. Although it prefers consistently moist, shady conditions, it is a tough, reliable plant once established and can cope with periods of dryness or direct light.