I have a beautiful wisteria tree. It is pruned into a beautiful umbrella shape. My problem is in its early years it was allowed to lean. So can I cut roots on the opposite side and try to start slowly pulling it back in an upright shape? Also, I call it a tree because it stands alone in the yard and has a trunk at the bottom, 3 or 4 inches in diameter. I have another wisteria on a trellis as a vine. Also, we bought this property some 5 years ago and the plantings were already here.
Wisteria Tree Leaning
Certified GKH Gardening Expert
You can cut the roots some, but you do not need to. To correct the lean, tie a rope around the "tree" trunk and anchor it in the direction you wish the tree to go. Use a piece of garden hose over the rope where it touches the tree to protect the plant. Tighten the rope a little every few weeks to pull it back into the right angle. This will correct it without hurting the tree.