Sagina subulata Sagina subulataCommon name(s): Heath Pearlwort, Awl-Leaf Pearlwort, Irish Moss, Scottish MossBlooming time: summerBlooming colors: whiteHeight: 3 to 6 cmOrigin: EuropeHardiness zone (USDA): Z4 – up to -28 °CFamily: CaryophyllaceaeRelated plants:Cerastium tomentosumDianthus deltoidesDianthus plumariusSaponaria ocymoidesSilene coronaria