The flowers of Watsonia dubia are spaced in two opposing arrays along the sturdy, slightly twisted spike that grows annually from the corm. There is usually a slightly angled direction change or twisting at each flower up the stalk. The sharply pointed bracts at the flower base are quite long.
The corolla is pink or pale pink. It has a long tube slightly funnel-shaped towards the mouth where the oblong and rounded tepals open wide. They may have tiny pointed tips and a darker tint down the centre. The three stamens visible here have long, curved, dark anthers with granular surface appearance. The style divides into three pink branches with further forking of the stigma.
Flowering occurs in late spring (Manning, 2009; Bond and Goldblatt, 1984).