Wednesday 3 October 2012 11.11am
How about solanum. If you ever walk along The Cut
there is a white flowering one on the corner of Styles House. it is ever-green and flowers all through the summer. I can let you have a rooted cutting if you would like to private message me. I also have a rooted cutting of a pink flowering clematis montana which will grow at the rate of knots but is not ever-green. Whatever you choose, make sure it can attach itself to the trunk either by its own 'suckers' otherwise you will need to tie some wires to the trunk so that you can tie the plant on.