Pruning a bonsai involves cutting the shoots, leaves and branches. This is an important step in the art of Bonsai. This one gives the shape of the tree and keep the small size of the Bonsai. It is important to repeat this action to keep a beautiful shape. It ensures a better flow of tree sap. There are several types of pruning.
Pinching: Involves cutting the new shoots at the time of hatching. This technique applies to conifers and some slow growing deciduous tree.
Pruning the leaves: Is done on a healthy tree in summer every 2 or 3 years, but never in the year of repotting.Cut all the leaves with good scissors, and protect the tree from excessive wind or sun. This is done to give the bonsai smaller leaves, or when the bonsai is too dense, it allows the leaves to breathe and prevent the center being damaged
Pruning the branches: this cut allows the lower branches to become better irrigated, and avoids the bonsai does not grow in height. Prune the branches from spring to fall, leaving 2 or 3 leaves per branch.
Structural pruning:This allows the deciduous bonsai to have a perfect shape and not having too large branches the following spring. This type of pruning is done in winter. Cut the the branches that we find undesirable or unesthetic. Be careful because this is an advanced technique, if your are not not confortable with this ask an expert.