How do you shape a pine tree?
How do I "shape/prune" a pine tree to have a wider form and a shorter height and to have a more umbrella-like (or other beautiful) appearance just like an Italian stone pine or Japanese umbrella pine? My pines are regular pines and I begin shaping them after they are 4+ years old and at least 7-8 ft. tall. So far I was snapping the new growth on top of the pines and their heads densed a bit for the last several months only been doing this. How do I make them more umbrella grotesque interesting shapes? Is there a book about it? Thanks.