topworked

Topworking is a horticultural technique used to propagate or rejuvenate fruit trees and other woody plants. It involves grafting a scion wood onto an established rootstock, typically at or near the top of the plant. This method is often employed when a plant is old, unproductive, or has undesirable fruit characteristics.

The process of topworking allows for the introduction of new varieties onto an existing, mature root system. This can be beneficial as it bypasses the juvenile period of growth that is typically required before a young tree can produce fruit. The established rootstock provides a strong foundation and can contribute desirable traits such as disease resistance or adaptability to specific soil conditions.

Common reasons for topworking include changing the fruit variety of a tree, introducing multiple varieties onto a single tree for cross-pollination or diversity, or improving the vigor and productivity of an older tree. It can also be used to correct structural problems or to salvage a tree that has been damaged. The success of topworking depends on careful technique, proper timing, and the compatibility between the scion and rootstock.