WE have a screen of cedar trees along one side of our property, and we had a large cypress tree in front of one section that had to be cut down. Some of the lower branches up (but going up to about 5 feet) on a couple of the cedar trees are dead from being shaded out by the cypress tree. I was thinking about putting a trellis in front of that area and growing a vine on it. Any suggestions for an evergreen vine that won't be too aggressive and jump onto the trees?