how to straighten a tree that is growing slanted?
Once the tree is upright, tamp the soil around it with your shoes and water it thoroughly. This settles the soil into place. Once the tree is straight, you have to keep it that way for several years. If it is six to ten feet tall, drive a sturdy six-foot long stake two feet from the trunk on each side of the tree. Loop one inch wide nylon belting loosely around the trunk and stake.