Clematis montana on wall

The Clematis montana in the court riots over the wall facing east and up over the edge of the roof. At least it appears to riot, but is really trained and regulated; the training favouring its natural way of throwing down streamers and garlands of its long bloomladen cordage. At one point it runs through and over a Guelder Rose that is its only wall companion. Then it turns to the left and is trained in garlands along a moulded oak beam that forms the base of a timbered wall with plastered panels.