Cerastium tomentosum
A low, spreading perennial ground cover prized for its dense mat of silvery, woolly gray foliage, growing 6 to 8 inches tall and spreading 2 to 3 feet wide. It performs best in full sun with low to moderate water and demands sharp drainage, tolerating poor and rocky soils, heat, and exposure. In late spring to early summer it is blanketed with masses of small, snow-white star-shaped flowers that nearly hide the leaves. Excellent for slopes, rock gardens, wall and bed edging, parking strips, and as a bright silver-and-white ground cover or border filler in dry, sunny settings.