The white, pink or purple flowers of Gibbaeum heathii become from 1 cm to 3 cm in diameter. The species presents the same colour range in its flowers as does the entire genus.
Each flower grows solitary upon a pedicel or stalk. There are six sepals. The diaphanous petals, here white but not quite, are oblong, angled up around the small flower centre. Each flower centre is occupied by a few styles and many stamens.
About eight triangular valves can be counted in the photo on top of the locules where the seeds had grown. There are valve wings present but no covering membranes or closing bodies.
Flowering happens from late winter through spring (Vlok and Schutte-Vlok, 2015; Smith, et al, 1998).