The flowers of Watsonia marginata may be pale to dark pink or purple, sometimes white. The margins of the spreading tepals are partly crinkled in the photo. They overlap in their two whorls of three each, forming the corolla into a shallow bowl-shape.
The stamens, white and dark blue in picture, are erect in the flower centre, symmetrically arranged around the white style ending in three stigma branches. The flower tube is up to 2 cm long, the filaments of the stamens about 1 cm (Manning, 2007; Bean and Johns, 2005; Bond and Goldblatt, 1984).