These are more pliable in growth than Climbers and generally flower only once. The individual blooms tend to be smaller and come in large trusses, but for sheer quantity of bloom they are unsurpassed. Although normally trained upwards to cover a trellis, fencing or wall their lax nature makes them useful for trailing down slopes. Some of the very vigorous sorts can be trained up through trees or used to smother unsightly buildings etc. Pruning Guide: They require little pruning but once established one or two of the older stem can be removed after flowering to encourage new basal growth.