Crown lifting is carried out to increase the clearance between the ground level and the lower branches either to allow access below the tree, to clear sight lines, improve views or allow light to penetrate to the ground.
By removing the lower branches you can:
- keep away from traffic
- keep them away from a buildings
- make signs visible that were installed too far off the ground
- let in more light
- open up a desirable view
- create a lower trunk free of branches.
This type of pruning does much less damage to a tree than reducing the canopy size. It is best done gradually over a period of years.
This is a more extensive and severe form of pruning and is used to:
- Reduce the weight of potentially dangerous limbs.
- Balance a misshapen tree, for example, following storm damage, or after bad pruning.
- Prevent trees obstructing or damaging buildings and property.
- Prevent trees from interfering with overhead telephone and power lines.