Actually I’m trying to get a couple of boxwood shaped azaleas to look at little more natural, but I can’t seem to get them to fill in at the bottom.
The trick is to make cuts at various spots along the branches. Make some cuts deep inside the bush, others midway, and some just tip cuts. Don’t ever cut more than 1/3 of the bush. So, it will take a few years to get squared off shrubs to look natural.