the cultivation of artificially shaped fruit trees on feebly growing rootstocks for purposes of high yield and decorativeness. Topiary work is sometimes called trellis gardening, since the trees are often fastened to supports whose bearing elements are in a single plane.

Topiary work originated in 16th-century Europe. It reached its greatest development in the second half of the 19th century in France and Germany. In Russia the first topiary gardens were established in the late 1900’s, but they had no commercial significance. During that period topiary work was distinguished for the diversity and complexity of shapes (irregular palmettes, pyramids, intricately shaped vases and cups). In Italy in the 1930’s tree shapes that were simpler in structure and execution were created—for example, cordons and simple palmettes—which were suitable for commercial gardens. The palmette form rapidly gained popularity among fruit growers in Bulgaria, Rumania, Yugoslavia, France, and a number of other countries. In the USSR commercial gardens using the palmette form were established in the 1950’s and 1960’s in Moldavia, the Crimea, and other southern regions. Currently the gardens are operating successfully. Most of the complex artificial tree shapes characteristic of classical topiary work, that is, forms having a geometrically regular arrangement of branches, are used only in ornamental horticulture.

The fruit trees most often used in topiary work are apple and pear; plants with drupaceous fruits are only rarely used. The most suitable varieties of apple and pear are those characterized by moderate growth and fruit yield on new branch tips. An annual new growth of 1–3 cm with one well-developed apical bud is desirable. Topiary work is more laborious than growing trees with natural crowns. It involves annual pruning and binding of shoots and the use of such special techniques as bending, twisting, and girdling of branches. The practice requires extensive knowledge and experience.