Cmeg,
Boon gave us a new handout on developing roots on young deciduous trees.
Note that the Japanese illustrations go from top right to left bottom.
In brief, bare root the tree. Find the level of roots you want. Cut off the tap root, straight across. Have a piece of plywood prepared with 8 holes, with wire placed according to the diagram. The diagram doesn't show it, but I have drilled a pilot hole up into the bottom of the trunk. And screwed a coarse sheet rock screw up from the underneath side of the plywood, then into the bottom of the trunk. Effectively screwing the tree onto the board.
Then spread the roots out, and secure them down with wire on the board. Then bury the board in the pot, kinda deep. At least an inch under.
Leave everything in place for two years.
Then, pull the board up, trim roots as necessary. You may need to place some rubber pads between the roots and wire. Bury it back down for two more years.
Straight Akadama is fine.
You will be amazed at the nebari you will get!
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