The main purpose for cutting branches off of trees and bushes is to cure that tree or bush that has become diseased whilst growing. Alternately they can be used to obtain willow branches from farmed willow trees. Up to 6 willow branches can be cut at a time, after which the branches regrow one at a time at regular intervals of approximately 10 minutes.
Secateurs are also used in the Phoenix Lair to cut branches from special trees. These branches can then be woven into a funeral pyre for the Phoenix.