All these small campanulas have masses of bell-shaped flowers, in the blue / purple / white colour range, in mid or late summer. Most of the small species are plants for sunny, well-drained positions on rockeries or raised beds, and many can be grown in walls by scattering seed. Some have a distinct preference for limestone, and a few need to avoid winter wet. See also Adenophora and Edraianthus for some related species, and Codonopsis for some climbing relatives. Also Cyananthus for some fine, low plants with trailing stems.

Campanula poscharskyana 'Silberregen' is very easy and its name is well known, but it isn't as widely grown as it deserves. It has trailing stems, so many that they build up into a green mound, with lots and lots of silvery white flowers, hence the name 'silver rain'.