Throughout most of South Africa Rose pruning should be left until late July/August. This is when the days start to get longer and temperatures start rising which leads to new growth and a great time to shape and prune your roses. Remember pruning in early winter and late autumn could stimulate new growth before winter, resulting in cold damage. Rather wait for end of July. Roses can be pruned lightly during the summer months. Pruning lightly during summer will re-in vigour your roses and encourage growth, it also helps manage the size of your rose bushes and promotes more flowers and a longer flowering period too.