It has a basal rosette, with slender, lanceolate, crisped (wavy-margins) leaves.
The mauve, pink, purple or blue (rarely white) flowers are mildly scented, and appear on a spreading inflorescence in Spring (August to November in the southern hemisphere). The plant can be up to 40 centimetres high.
It is native to the Cape region of South Africa, especially the renosterveld, where it grows in sandy or loamy soil in clay and granite slopes. Its range extends as far north as the Namaqualand, and southwards into the Overberg region of the southern Cape, as far as the town of Riversdale.
It tolerates drought but is vulnerable to frost.