The genus Arenaria, known also as Irish Moss, or less attractively Sandwort, consists of plants that are usually mats or tight cushions of tiny leaves, with short-stemmed starry flowers, usually white. They make excellent rock garden plants.

Arenaria balearica

Mossy, dark green mat studded with short-stemmed white flowers.


Arenaria purpurascens

Mats or cushions with lots of pink-purple starry flowers.