Horticultural form of Campanula cochlearifolia Lam., selected for the white color of its flowers, belonging to the Campanulaceae family. Like the type species, it originates from the mountains of Central and Southern Europe, from the Pyrenees to the Carpathians, where individuals with white flowers sporadically appear in wild populations.
It shares with the type species its stoloniferous and carpeting behavior, forming small clumps 5 to 15 cm in height that gradually spread through a network of fine superficial rhizomes. The foliage is identical: basal leaves round to kidney-shaped, slightly toothed, a bright and shiny green.
The flowers, hanging at the top of slender and graceful stems, are narrow bell-shaped, of a pure and bright white. This clear whiteness, carried by nearly transparent stems above dark foliage, creates a particularly delicate and luminous effect in rock gardens, all the more striking when the plant blooms en masse.
In its natural habitat, the flowering of the type species extends from July to September depending on the altitude. In cultivation, this cultivar generally blooms from June to August.
The cultural requirements are identical to those of the species: poor, calcareous, and perfectly drained soil, sunny exposure. It is suitable for rock gardens, walls, and alpine troughs.