Climbers and Wall Shrubs
During the summer climbers make long extension growths, these should be trained out in a fan shape or horizontally as soon as they appear over the strained horizontal wires or trellis, to fill up the spaces allotted to them. Any stems that cannot be tied in or grow beyond what is desirable should be removed.
Once the framework of stems is trained out in the space required, it is intended that the plants should clothe the walls/fence with a draping curtain of foliage and flower. If the plants become too vigorous and start intruding onto other plant spaces they can be trimmed back during the growing season. Otherwise, they only need pruning when they outgrow the space allotted to them. Cut out old and weak growths and thin out and shorten the remaining shoots by up to two thirds to a framework well within the space you want them to occupy.