Thanks for your replies.
I am not a keen gardener and am looking for the easiest option to disguise (year-round) the ugly lines of my house.
I don't want to get into putting up support, I just want to plant well and leave alone.
Maybe in ten years I'll pull it all off, repaint and start again, maybe not.
Sacha, you'll know where I live, it's up North Street, past Westabrook, so it's closer to the moor than you and it is a north wall.
I am prepare to go with ivy if necessary.
Jerry