Campanula carpatica ‘Pearl Blue’
A compact, clump-forming perennial which has bright green, toothed, rounded leaves. From June to July, upturned, broadly bell-shaped to bowl-shaped, violet-blue flowers are borne.
Grow in moist but well-drained, fertile, neutral to alkaline soil in sun or partial shade. It will reach a height of 25cm and a spread of 60cm.