I recently received this question from Wendy in Wisconsin, I have a 15 yr. old sargent crab apple, multi-trunked, planted 6 ft. from the house, under a large window 8 ft. from the ground. The hope was the tree wouldn't grow beyond 8 ft. in height, but it’s now more like 10 ft.…Last year, because the tree had grown above the bottom of the window, I pruned the ends of all the top branches (i.e. shortened the tree)… This year there is vigorous new growth (3-4 ft., with multiple branches from … [Read more...]