when growing on the ground, dig up the tree every three years to cut the big roots
the following growth season will be much slowed down while the tree focus on roots
the second year is good for structural pruning or collection because of the new fine roots
the third year prune both in winter and in June to allow light inside the tree
when chopping the tree to select a new leader, remove all the buds above it in August
air layering is possible to create a new nebari: remove a 5mm ring of bark in February, let it dry a few days in a cold room, place a wire of the same size and use akadama + moss
when cutting a big root, create a drop shape on the trunk going up to form a better scar
when growing in a pot, contrary to the ground, wait until the end of winter to repot and cut roots
drastic root pruning is possible but keep enough buds on the tree, they will all be needed
with a lot of leaves and not enough roots, the tree will react by creating a lot of fine roots, even more so when using fine substrat
the next growth will be very strong, pruning and defoliation should be done in June to allow light inside the tree, with pinching after that to have short internodes
