Do you have Campanula persicifolia var. planiflora ‘Coerulea’ currently in stock at the nursery?
They are fully to half hardy and are grown in the sun or shade. Most of the species will prefer moist but well drained soil. Delicate flower colours are preserved best in shade.
You can propagate by softwood or basal cuttings in the summer or by seeds or division in the autumn or spring.
Pests, diseases or disorders
Snails, slugs and rust.