Good question!
If you don't know what you are doing, this garden task strikes fear into the hearts of many proud garden owners, but it is actually a simple and rewarding process. All you need to do is to understand a few basic principles behind the why, when, and how of pruning shrubs. Once you implement these ideas and techniques, you’ll see a healthier, more floriferous garden that same season.
There are different types of pruning and this depends on the type of plant. The results are different as well. This could be: More flowers, another bloom later in the season, better leaf colour, brighter stem colour. Reasons: Re-shaping and control of the plant, rejuvenation, or simply removal of dead and diseased and damaged wood.
Below see how a simple prune and feed can improve the the overall appearance of this olive tree. Please remember: The correct technique at the correct time of the year.