Masses of small blue flowers in spring. Alan Bremner's hybrid: a compact clump of leaves and the myriad of flowers are held erect for weeks in late spring. Open or light shade, not too dry. 70cm.
Treasured form has spode blue flowers with large white centres. Doesn’t show its true colour till late summer with cooler, damper weather. Plant it deeper in cool humusy soil in light shade or open position with a good mulch. More or less prostrate.