Our local Home Depot has a bunch of 15 gal eastern live oaks they are selling for under $20. They look just like the live oaks I have in my back yard so I imagine they would do OK here ( not always true of the stuff our local box stores sell ). The problem is their trunks are bare for about 4". You can see the scars where they have been pruned. My questuin is how can I shorten this trunk to a more resonable 12" or so. I know a lot of D-trees can be trunk chopped and regrown but I have no bonsai experience doing this. I also thought about getting a tall , noarrow trash can or a few 15 gal nursery pots and doing a ground layer. Any suggestions other than dig a 4' hole and bury the sucker up to the existing foilage.