Heliosperma alpestre

Perennial of the Caryophyllaceae family, native to the Eastern Alps and the northern Apennines, with locations in the Balkans. It colonizes moist rocks, cool scree, stream edges, and crevices of shaded to semi-shaded walls, generally between 800 and 2,000 meters in altitude, on calcareous or siliceous substrates provided that moisture is ensured.

The plant forms loose tufts of linear to lanceolate, bright green and shiny leaves, from which rise branched, slender, and slightly sticky stems, reaching 12 to 20 cm in height. These stems, often tinged with dark purple at their base, bear numerous small white flowers with five petals deeply cut into strips, giving them a finely fringed and very characteristic appearance. The whole produces an airy and luminous effect that contrasts with the mineral nature of the rocky setting.

In its natural habitat, its flowering extends from June to August depending on the altitude. In cultivation, it generally occurs in June-July.

It thrives in cool rock gardens, in moist wall crevices, or in troughs, in semi-shade or filtered light, in well-drained but never dried-out soil. It readily reseeds itself and can, over time, form small spontaneous colonies in the interstices of pavements or low walls.