Roses that bloom with single, large flowers from early summer to autumn should have their pruning done in autumn or winter, focusing on maintaining a framework of long, laterally trained stems with side shoots that will blossom with new growth come spring.
Monty Don names garden plants that must be pruned now to get the most flowers Pruning is a beneficial practice for all garden plants, even during the winter months.
For certain roses, Monty advises a vigorous spring pruning, starting by cutting away any weak, damaged, or crossing stems, then shaping the rest into a stubby, open bowl structure.
Since it produces its flowers on new growth, cutting it back hard just before it starts growing will "stimulate extra new shoots" and ensure the shrub has "as high a proportion of flower to wood as possible".
Lastly, roses that boast clusters of smaller flowers once in mid-summer require minimal pruning; they should be shaped and trimmed "immediately after flowering", as they predominantly flower on stems grown in the late summer.
