A beautiful perennial producing large blue/purple flowers which rise above mounds of strappy, bright green leaves throughout summer. A stunner in the ground or in pots.
Likes any moist but well drained soil (will not tolerate water logging). Best planted in full sun, but will tolerate partial shade.
Can be left in the ground but give a covering of mulch during winter.
Height 60 – 90cm x Spread 90 – 120cm