Zone:  7-11 (so, not quite hardy here, but now overwintering with mulch)
Height:  1m (3ft)
Spread:  30cm (1ft) clump gradually increases
Bloom:  Lovely cobalt blue balls of small star flowers, bloom atop tall, strong stems, mid-summer for 1-2 months
Foliage:  Mid-green, strap-like
Light:  Full sun
Water:  Maintain even moisture for best longevity of flowers
Soil:  Rich
Garden location:  Keep as container plant, over-winter in heated greenhouse or house