How to Prune clematis 'Prosperity'?
Pruning (clematis) group 1

clematis 'Prosperity' · Clematis 'Prosperity'
Plant in well-drained soil, in a sunny, sheltered position, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown 5-8cm deep to encourage new shoots to grow from below ground level. Can be grown in containers at least 45cm deep and wide in a loam-based potting compost. Ideal for cold greenhouse or conservatory. See clematis cultivation
Pruning (clematis) group 1