Snow In Summer Ground Cover Plants
Snow in summer ground covers are lovely plants with grayish green leaves and bright white flowers in June. It is named for the array of white flowers produced during the summer months. When it is not flowering, the silvery foliage can be very attractive. Like other members of the genus, it needs to be clipped or mowed at a high setting after it flowers to keep the plant tidy and prevent a matting growth habit. Matting can subject the plant to rot and cause bald patches to develop. Growing snow in summer plants (Cerastium tomentosum) is relatively easy. Snow in summer likes full sun but will also thrive in partial sun in warm climates. New plants can be started from seed, either directly sown into the flower garden in early spring or started indoors four to six weeks before the last expected frost date. The soil must be kept moist for proper germination but once the plant is established, it is very drought tolerant.
Established plants may be propagated by division in the fall or by cuttings. Space the snow in summer flower 12 to 24 inches apart to give plenty of room for spread. Mature plants grow to 6 to 12 inches and have a spread of 12 to 18 inches. Snow in summer ground cover is very easy to maintain but will spread rapidly and may become invasive, even earning the nickname mouse-ear chickweed. The plant spreads quickly by reseeding and sending out runners. However, a 5-inch deep edge will usually keep this plant in its borders.