I picked up this big tooth maple (Acer grandidentatum) as a 1 gallon nursery tree a year and a half ago, at which time I chopped the primary trunk. I repotted in bonsai soil last spring and it grew very vigorously.
It has leafed out very strong this spring. I am considering building the tree from the bottom 3 small branches and strengthening them by defoliating the dense upper canopy in another month or so. Does this seem like a reasonable approach, or should I just wait and chop the leader this winter? Has anyone defoliated this species? Thanks