Someone gave me a wysteria vine about 6 yrs ago and I planted it on my pergola. BIG MISTAKE!! I think it is the old fashion kind that you see in the woods. (according to the long purple blooms on it.) Needless to say it has lived and thrived to the point that runners are everywhere. They are even coming up thru the decking boards on the deck of my pergola and spreading to the nearby trees next to the pergola. Although this plant is lovely in the spring when it blooms it has become a real nuisance. I have decided to cut it down and replace it with something much less invasive. Will cutting it down kill it or will these runners keep popping up? Are there any varieties of this plant that are not as invasive. If not what is another vine that will cover the top of my pergola and give me some shade but stay put and not have all these ground runners.