Size 4 ", Cerastium tomentosum 'Silver Carpet' (Snow-in-Summer), 

Bloom Time: Spring (Apr,May) Growth Rate: Fast Dimensions: 6-8" tall x 12-18" wide

The silvery-white mat of foliage is smothered with white flowers from April to May. Lovely as a groundcover, spilling over rock walls, or as part of a mixed container garden.