A native of South Africa where it is adaptable to most conditions, most soils but prefers an open, sunny position. It is both frost and drought hardy.
A perennial clumping plant, it grows to a height of 1 metre (3ft) with a spread of 1 metre. The stem is erect and flowering, the leaves are dark green, glossy and strap-like; the flowers are blue and tubular, with up to 200 blooms occurring in large globular heads in summer.
Propagation is easy by seed or by division of the clump.