Our vote goes to wisteria, we are totally in love with the way it clings to walls or arches and drapes down.
With a delicate lilac/purple flower that looks like bunches of grapes hanging from vines.
Of course it looks even better when it is well established and has been growing for years. Some of the country cottages that’s have had wisteria growing up the for years are absolutely gorgeous, likewise sometimes you see a beautiful tradition London house with a tiled entrance and grand door. When you look up and see wisteria growing and hanging down it makes the property so much more appealing than it already is.