.Next, wrap rubber strips tightly around the trunk at the top, to prevent it from swelling and ruining the form. Many new shoots may attempt to grow from where you cut; rub off all but a half-dozen of them. As the shoots grow, pinch their tips to promote branching. This broom style is especially suited to the growth habits of deciduous trees like elm and sycamore.
Guide explaining various forms of pruning that bonsai mainly depend for their dwarfing; i.e. shoot pinching, leaf pinching, root pruning, and pruning during dormancy. Read on to know How to Dwarf Bonsai Trees.