Posted: 13/10/2014 at 07:39
Climbing hydrangea (H. petiolaris). It loves the shade and clings to the wall itself so you don't need trellis or wires (although it will appreciate a little help while it's still small). It has lovely creamy panicles of flowers in the summer and although it does lose it's leaves in lthe winter, I always think that the tracery of stems on a wall in the winter look really beautiful.
It grows close to the wall and can be kept trimmed back even more closely if needed.