Often the trees are trained on cordons, espaliers, trellises or walls.
It may be grown as an open dwarf, and is well suited for espaliers.
Some, however, are trained as espaliers against walls, and in fan shape.
Various forms of espaliers are handled in much the same way.
All of the better types of espaliers are suited to pear trees.
In the form of espaliers plums are ...