I have a red oak tree that has grown up leaning, and lopsided, due to
competition from a nearby tree. The nearby tree has now been removed.
I expect the lopsidedness to go away on its own, but can I correct the
trunk lean through staking? How long would it take? The tree is about
12 years old and about 20 feet tall, about 5" caliper. I'm pretty sure
its flexible enough to pull over, but will the new orientation "take" ?
Any info or references appreciated.

-- Heathcliff