King's Mantle, Thunbergia erecta is a purple flowering exotic shrub that is popular as a specimen plant in the landscape. It grows 8-10ft tall with a somewhat weeping habit, but can be kept much smaller at 4-5ft. It does best in full to part sun to encourage blooms, and is adapted to well drained soils. It blooms heaviest in the warm months, though it tends to produce flowers year-round.