In Colorado, these varieties have shown to lose their lower branching over time, resulting in dead-spots on the tree,' Carolin notes. Known to have a 700 year life span, the columnar oak comes in ...

Apple trees are very versatile, they can grow in an orchard, in a large bed, on a lawn, or trained against a wall or fence as a fan, columnar, or espalier apple tree. They want an open and ...