Both varieties of Sagina are creeping groundcovers with low moss-like foliage and tiny white flowers. They are not true mosses and prefer moist, sandy soil. They are hardy in zones 4-9. Irish Moss grows best in Full Sun to Part Shade with dark foliage and white blooms June-July. H 1-2" x W 8-10". Scotch Moss grows best in Part Shade to Full Shade with bright, green foliage & white blooms June-July. H 1-2" x W 8-10