Topiary

Topiary is the art of creating sculptures using clipped trees, shrubs and sub-shrubs. The word derives from the Latin word for an ornamental landscape gardener, topiarius, creator of topia or "places", a Greek word that Romans applied also to fictive indoor landscapes executed in fresco. No doubt the use of a Greek word betokens the art's origins in the Hellenistic world that was influenced by Persia, for neither Classical Greece nor Republican Rome developed any complicated tradition of artful pleasure grounds.
The plants used in topiary are evergreen, have small leaves or needles, produce dense foliage, and have compact and/or columnar growth habits. Common plants used in topiary comprise cultivars of box, arborvitae, bay laurel, holly, myrtle, yew, and privet. Shaped wire cages are sometimes working in modern topiary to guide untutored shears, but traditional topiary depends on patience and a steady hand; small-leaved ivy can be used to cover a cage and provide the look of topiary in a few months.