Espalier -- an old French way of growing trees on a horizontal plane -- looks and sounds complicated, but is actually pretty simple. While it takes a bit of extra time shaping them when they're young and keeping them pruned, but you can pack in apple, pear, or other trees you may not normally have room for.
In a general sense there are two types of fruiting trees- spur bearing such as most apples and pear trees, or tip bearing trees. Spur bearing trees are ideal for espalier as you won’t prune off the new fruiting buds when trying to maintain a cordon or espalier shape. Although it’s not impossible to espalier tip bearing tree such as apricots, plums, cherries, peaches and nectarines you will be restricted mainly to the fan espalier sh
See our ingenious pruning method for growing an orchard in a small backyard. Shown: Kept small with timed pruning, this 'Fuji' apple tree stands about 4 feet high and wide and produces an ample crop of full-size fruits.