
Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on February 19, 2012
You can try root pruning. How much you can do will depend on how big the tree is. You can safely prune up to 1/3 of the roots away at once but make sure to also prune an equivalent amount from the above ground portion as well. You would then need to wait about 6 months before you could do it again.
Depending on the size of the tree, 1/3 may be enough to down size as much as you want, but you may also need to do it a few times. Here is more on root pruning: https://www.gardeningknowhow.com/houseplants/hpgen/prune-roots.htm
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