Root pruning a potted apple tree
I planted a weeping crabapple tree about 3 years ago in a container approx. 3 ft. square x 2 ft. high. It undoubtedly is root bound at this point and I would like to prune it while it remains in the container.
The questions that I can't seem to find any answers to are when is the best time to do this and how do I do it without completely dislodging it from its container? Is this possible?
Any suggestions would be greatly appreciated.