A hardy grass-like perennial with large stems of bell shaped, purple blue flowers and tidy clumps of deep green, strap-like leaves.
Position: Does well in full sun or partly shaded positions.
Soil: Grow in well-drained soil.
Watering: Water regularly during dry periods.
Fertiliser: Apply complete fertiliser after flowering.
Flowering: Spring and summer.
Grow tips: In winter, cut back to ground level to encourage fresh new spring growth.