It forms a very dense and compact, hemispherical cushion, 5 to 8 cm in height, composed of short, rigid, and pointed leaves, with a persistent glaucous green, which give the foliage this prickly and tight appearance so characteristic of the species. The flower stems, barely taller than the cushion, bear globular heads of pure white, surrounded by cream to slightly golden scarious bracts. The whiteness of the heads, set against very dark glaucous foliage, creates a particularly sharp and bright contrast.
In its natural habitat, the flowering of the type species extends from April to June. In cultivation, this cultivar generally blooms in April-May, sometimes as early as the end of March in a well-sheltered and sunny location.
Like the species, it requires full sun, perfect drainage, and a poor, mineral substrate, preferably acidic to neutral. It does not tolerate persistent moisture in winter. It finds its place in troughs, miniature rock gardens, and alpine gardens, where its tight habit and immaculate flowering make it a choice subject for enthusiasts of demanding species.