Grafting is a horticultural technique where a stem or bud from one plant (called the scion) is attached to the rootstock of a different plant. The scion and rootstock eventually grow together, forming a single plant that combines the desirable traits of both. Grafting is often used to propagate plants with desirable characteristics such as disease resistance, fruit quality, or growth habit. It is commonly used in the production of fruits, vegetables, and ornamental plants.