A hard prune may be necessary if the plant becomes woody, Cut leaves after fall, Cut or pinch the stems, Pinch or prune as they grow to promote branching and bushiness, Prune for shortening long shoots, Prune in early summer, Remove deadheads
Cut or pinch the stems, No pruning needed in the early stages, Prune if you want to improve plant shape, Prune in spring, Prune to stimulate growth, Remove dead or diseased plant parts, Remove shoots