H. F. Young clematis is a deciduous climber that grows 8 to 10 feet and produces single, bluish flowers 6 to 8 inches across with a greenish white bar on the reverse side. The plant was named after a director of the Pennell Sons Nursery and was awarded the RHS Award of Garden Merit. A member of clematis pruning group 2, H. F. Young blooms in late spring to early summer and then again in early autumn. It does not require major pruning, just the removal of all dead and weak stems in late spring. It prefers sun or partial shade and can be grown on a pergola, arbor, large trellis, or obelisk.