pruning a two-year old cherry tree
We have a two-year-old cherry tree (Kanzan, I think) which looks very healthy, but has 5 or 6 main branches, about 3 feet long coming out from the main 'trunk' at about 2 feet from the ground. These branches are all at about 45 degrees from the vertical. We want the main trunk to be much higher, say about 6 feet from the ground, and then let the branches splay out. Would it be OK to cut all but one of these branches, and tie it to a stake so it grows vertically? And if so, when would be the best time to do this?