Summer of year two
As these new shoots grow, in summer two they should be pruned to four or five leaves before they get too straggly. If sideshoots grow on the sideshoots, pinch them back to one or two leaves. The aim is to control growth while allowing the plant enough foliage to feed it. In the winter of year two you’re ready to prepare the vine for cropping. Having promoted these sideshoots all along the rods you can now train the rods up a wall or greenhouse or keep them horizontal. The shape doesn’t matter – you can have a single line of rods or create a shape like an espalier. Or your rods can be along the top of a pergola if you have some steps to hand for pruning.
Give vines a summer prune
Keep vines in check while leaving some leaves be