Kings mantle - perfect ever-blooming hedge. Bushy dense fast growing shrub. Blue flowers resembling morning glory. Several of the best-known Thunbergia species are climbers, but this native of tropical Africa is a sprawling shrub, very useful in mixed beds or as a low hedge. It has attractive, small, dark green leaves and tubular flowers which in the most common form are rich purple with a yellow throat. Responds well to regular pruning and can be shaped into a very bushy shrub, though this inhibits blooming. It prefers full sun and well-drained soil but will bloom in partial shade.