Campanula poscharskyana

Common name(s): Serbian Bellflower, Trailing Bellflower
Blooming time: summer
Blooming colors: blue, purple, white
Height: 10 to 20 cm
Origin: Croatia to Montenegro
Hardiness zone (USDA): Z3 – up to -34 °C
Family: Campanulaceae
More infos: the images are showing Campanula poscharskyana “Lisduggan Variety”