Cultivar
'Devon Skies'
This perennial forms tufts up to 250mm (9¾in) tall by 400mm (16in) wide with dark green grass-like foliage. It produces soft sky-blue flowers with yellow centres that appear throughout summer. 

It is planted in small gardens for edging or soil pockets in rockeries and along stepping stones. It grows in full sun to part shade on well drained moist soils and has a medium water requirement once established. (Scale: 2-drops from 3)