How to prune campanula portenschlagiana

After flowering in mid to late summer; light tidy in early spring. After the main flush fades, shear the mat lightly with scissors or hand shears, removing spent flower stems by about one-third. This often triggers a second wave of blooms. In early spring, remove any dead or brown material from the centre of the mat by hand.

Once after flowering (summer) plus light spring tidy; otherwise as needed. Campanula portenschlagiana is a low, mat-forming bellflower that needs minimal pruning. After the main flowering in summer, shear or trim the plant over lightly to remove spent blooms and encourage a second flush. In spring, remove any winter-damaged or dead material from the mat. No hard pruning required.

After the main flush fades, shear the mat lightly with scissors or hand shears, removing spent flower stems by about one-third. This often triggers a second wave of blooms. In early spring, remove any dead or brown material from the centre of the mat by hand.