Agapanthus inapertus subsp. intermedius

Dyer's African lily

A clump-forming, deciduous, herbaceous perennial, producing narrow, strap-shaped, mid-green foliage, to a height of around 60cm (24in) and spreading to around 60cm (24in). Hemisperical heads of pendulous, funnel-shaped flowers in mid-blue, are produced in late summer, on straight, green stems, to approximately 1.2m (4ft) high.