The flowers of Delosperma leendertziae are a golden yellow for slightly more than the upper halves of their ascending petals. The petal bases are white around the central cone of stamens, somewhat unkempt from the presence of more petals, the inner tiny, thread-like, white ones around the stamens.
When the petals go, the five sepals persist around the initially red purple tops of the green fruit. Flowering happens during spring and summer (Smith, et al, 1998; Van Wyk and Malan, 1997; iNaturalist).