Espalier
Espalier falls under the techniques of horticulture. It is the practice of growing trees with the means of grafting and pruning. This creates a unique two dimensional visual image. It can also be made into singular plane pattern that are often done with branches of trees. Such techniques are used for aesthetic purposes.
The Espalier technique is in existence since the Middles Ages and even has its roots during the time of the Ancient Egypt. This technique is used to beautify orchards of rich people. Trees are allowed to grown in courtyards to decorate its walls. Originally, the term Espalier is used to refer to the trellis that trees and plants grow in. But over the years, it has been used to refer to the technique of training trees to be grow in a certain pattern. Espalier techniques is often used in gardening and in decorating outdoor and indoor settings.