Since I am trying to rid our new property of bindweed, English ivy and blackberry, I don't want to introduce any new species that may prove to be invasive. I purchased some Muelenbeckia complexa and before I set it loose, could you advise if it has the potential to become invasive? I've read that it is a fast grower. Ours is a sunny slope in Coquitlam, soil has been "on it's own" for years without ammendments.