Prunella vulgaris - Herbaceous perennial. Full sun to part shade, but does better with some shade. 30 cms height, 40 cms width. Young leaves and stems are edible, used raw or cooked. Self heal contains vitamins A, C, and K. Creeping growth habit.  A medicinal herb, used internally and externally..Used in both traditional Chinese and European medicine. Blue violet flowers held on spikes above the foliage in the summer. A good nectar producing plant for bees and insects. An easy to grow plant, which makes an attractive ground cover. Frost hardy. Grows in most well drained soils, provided they are kept moist. An olive green dye is obtained from the flowers and the stems .A tea is made from the fresh or dried leaves.