AUBRIETA deltoidea. Common aubrieta. Southern Europe, Iran. A tidy, matting perennial for the rock garden. It has tightly packed greyish green leaves, covered in spring by clusters of small 4-petalled flowers of white to deep red or purple. Various color selections will be available from time to time, the best of them from the garden of Roy Oliphant. Sun, reasonably well drained soil, moderate to little watering when established. Hardy to below 0oF.