How to prune campanula punctata

Deadhead immediately after flowering in summer; cut back to ground in autumn. Remove spent flower stems by cutting back to the leaf rosette at the base. For a second flush, cut the whole plant back by two-thirds after the first flowering. In autumn, shear foliage to ground level. Divide clumps in spring by lifting and splitting with two back-to-back forks.

Deadhead frequently in summer; cut back annually in autumn; divide every 2-3 years. Spotted bellflower benefits from deadheading to prevent excessive self-seeding — it spreads readily and can become invasive. Cut spent flower stems back to the basal rosette to encourage a second flush. In autumn, cut foliage back to ground level. Divide congested clumps every two to three years to maintain vigour.

Remove spent flower stems by cutting back to the leaf rosette at the base. For a second flush, cut the whole plant back by two-thirds after the first flowering. In autumn, shear foliage to ground level. Divide clumps in spring by lifting and splitting with two back-to-back forks.