(Flat of 10 Plants in 4.5" pots), Sagina subulata Irish Moss, (GROUND COVER), Low moss-like carpet of bright shamrock-green foliage, tiny white flowers spring-summer. Sagina subulata Irish Moss, (GROUND COVER), shipped in 4.5 " pot, 10 ct. tray Low moss-like carpet of bright shamrock-green foliage, tiny white flowers spring-summer, does not like drought or wet soil. Moderate foot traffic. Evergreen, Partial shade to full sun, Deer resistant. Hardy in zones 3 - 9, 1" tall and 12" wide fully grown Photo courtesy of Garden World.