Renovative pruning is used to deal with plants that are damaged or diseased by removing the affected sections. If used correctly, it may also be used to prevent problems from occurring in the first place, by giving the plant an un-crowded and open structure. This allows air and light to pass around the plant, preventing pests and diseases and keeping it growing well.

There are a number of that may be solved or prevented by renovative pruning:

Rubbing Shoots

Crowded stems tend to make a plant look untidy and may prevent it from growing into an attractive shape. The constant rubbing of these stems against each other may also cause friction damage, which will make the plant vulnerable to disease. Remove the stems that cross over each other to form an open structure.

Disease

Similarly, diseased shoots must be cut away so that they cannot infect the rest of the plant. Make sure that you remove all the diseased material, cutting back to the healthy wood.