How to Prune milky bellflower?
Cut back after flowering to prevent self-seeding and to encourage a second flush of flowers

milky bellflower · Campanula lactiflora
Also known as: milk-white bellflower
Requires a fertile, moist but well-drained, neutral to alkaline soil in sun or partial shade. The delicate flower colour is best preserved in partial shade. The plants may require staking in exposed positions
Cut back after flowering to prevent self-seeding and to encourage a second flush of flowers