How is the root system of this Blue Moon Wisteria: HOW INVASIVE CAN IT BE/GET?? Should it be planted away from building foundation structures?? How far will the roots reach/grow out from its base??
Blue Moon Wisteria
Certified GKH Gardening Expert
The roots are not what you have to worry about. They really aren't bad enough to do damage like a tree would. It is the top that gets a bit tangled. Just keep it cut to the desired shape and structure. Every year just remove the vines that are no longer wanted, Keeping in mind that you should always leave the large base stem for it to shoot from.