Campanula carpatica ( Jewel Bellflower )
‘ Jewel ’ invest forward magnificent deep purple - gentle efflorescence in abundance . C. carpatica produces many variants , but all the cultivars are low - growing , seldom more than eight to twelve inches in tallness , and usually lower . All the cultivars are clump or mat forming , putting forth dentated leaves , ellipse or heart - shaped and sending up stems of tubular , upturned , wiz - mould flowers in shades from deep violet through the blues to white ....