Gerald L. Klingaman , Extension Horticulturist - Ornamentals Plant propagation is the controlled reproduction of plants by man.
Asexual propagation is reproduction by means of vegetative parts such as shoots, roots or leaves.
In asexual propagation, there is no change in the makeup of the new plant. All characteristics of the parent plant occur in the new offspring. In many ornamental and fruit varieties, there are large numbers of plants originating from a single plant. Such groups of plants, including the original mother plant, are called clones . A clone is uniform material propagated from a single individual by vegetative means such as grafts, division or cuttings.