Sagina subulata spreads rapidly to form a tight-matted carpet. This  moss-like shade groundcover reaches only 1 tall and 15 wide. The soft, cushiony green mat of Irish Moss is covered with 100#39;s of tiny white flowers in spring. This fast-growing shade ground cover is perfect for edging pathways, or planting in between stepping stones where it can foot traffic. Plants grow best in part shade to full shade, and benefit from watering during prolonged dry spells. Great for planting …