The flowerheads of Helichrysum rosum are small, but often densely clustered in flat-topped inflorescences just above the stem tip leaves. They are enveloped in white or pink involucral bracts that dry to pale brown as in these spent flowerheads.

The papery bracts are narrow and acutely pointed around the many small florets in the yellow discs. A flowerhead measures about 3 mm in diameter. Flowering happens in spring to autumn (Vlok and Schutte-Vlok, 2010; iSpot).