Ruellia otaviensis is a hardy, compact, small, evergreen perennial with dull green leaves. It can sometimes scramble when planted in semi-shade.
It bears funnel-shaped, mauve to purple flowers from November to January. The flowers attract insects.
Use as a border plant in a mixed flower bed. Makes a good container plant and is waterwise.
Plant in compost-rich soil and prune back at the end of winter to keep it looking neat.