The flowers of Delosperma obtusum grow in much-branched inflorescences. There are leaf-like bracts on the pedicels that are from 5 mm to 15 mm long. The five sepals are unequal, of two shapes.
The numerous, narrow petals in shades of magenta, pink purple or pink and usually glossy. They angle up and out, growing in about one ring around the flower centre. There may be inner petals or staminodes around the stamens that form a cone or cylinder but not for long, as they do not cohere throughout the flowering. The stamens are white or creamy. There are five nectar glands in the flower base. Flower diameter is about 18 mm.
Flowering happens from late spring to early autumn and may be abundant in good years (Pooley, 1998; Smith, et al, 1998; iNaturalist).