Perennial of the Campanulaceae family, endemic to the Italian Pre-Alps, mainly in the limestone areas of the provinces of Brescia and Bergamo, where it occupies the crevices of shaded cliffs, old walls, and damp rocky escarpments, at altitudes between approximately 300 and 900 meters.
It forms dense and rounded clumps, 10 to 20 cm in height, with a compact and bushy habit. The leaves are small, oval to heart-shaped, crenate, slightly pubescent, of a tender and bright green, arranged in a tight mass that serves as a setting for the flowering.
The star-shaped flowers, widely open, of a delicate lilac-blue with more pronounced veins clearly marking each petal, are produced in very large abundance and literally cover the foliage. This floral generosity on such a small plant is the most striking feature of the species, as evidenced by the photograph.
In its natural habitat, its flowering extends from June to July. In cultivation, it can begin as early as the end of May.
It requires a limestone soil, very well-drained, in a sunny to semi-shaded exposure, sheltered from stagnant winter moisture. It is ideally suited to cultivation in pots or troughs, in crevice rock gardens, or at the top of a dry stone wall.