Several Watsonia species that bear colourful flowers also have white flowering forms. It is not known which one this is, possibly Watsonia borbonica. Some Watsonia plants do well in cultivation, as this one does in a Barrydale farm garden.
The 52 known Watsonia species, 32 of them occurring in fynbos, are perennial geophytes. Leaves and flowers are annually produced from the corm that is said to have a sour taste, forewarning those with a propensity for tasting such things.
Leaves are tough and fibrous, sword-shaped with prominent midribs and margins. Narrow, curved tubular flowers are spaced at regular intervals without pedicels in two opposing rows, spiralling up the flower spike. The stamens are bunched below the upper tepal; the stigma has three branches that fork (Manning, 2007; Vlok and Schutte-Vlok, 2010).