The small, white to creamy white flowers of Crassula hemisphaerica are tubular, about 3 mm in length.
They grow in a spike-like thyrse, spaced in opposing, branched clusters up the elongated flower stalk. Each cluster is subtended by a pointed, fleshy, leaf-like bract. Each pair of clusters is perpendicular to the previous (and following) pair. There may also be sterile bracts spaced below the inflorescence, above the rosette.
Blooming happens in spring and summer (Frandsen, 2017; Smith, et al, 2017; Vlok and Schutte-Vlok, 2015; iNaturalist).