Crown lifting is the removal of the lowest branches and/or preparing of lower branches for future removal.
When completing a crown lift, ideally you would not touch the larger branches that branch from the trunk. By cutting these larger branches they can easily become extensively decayed which will cause the tree biomechanical instability leading to long term problems.
Should you tree be aged, mature tree should only have primary branches shortened or keep the crown lifting process restricted to just secondary branches.
Crown lifting is an effective method to increase light transmission or to enable access beneath the crown. When completing a crown lifting we restrict pruning to less than 15% of the live crown height and leave the crown at least two thirds of the total height. Crown lifting as with other tree pruning methods should always reference a fixed point.
What if the lower branches are large in Diameter?
If you have a large tree with large diameter, low level branches, raising the canopy on trees can initiate trunk decay, be warned! In this circumstance we would thin these branches with 'drop crotch' cuts rather that removing them from the tree all together.
By completing a 'drop crotch' cut this will slow the growth rate. The tree's trunk will also become larger than the branch over time.
A tree can defend itself from trunk decay by forming a 'defence zone' at the base of the branch. Once the said branch is removed, the tree experiences less stress.
It is inappropriate to simply remove lower branches without correcting structural problems so when raising the canopy we may be required to prune structural areas as well.
Which trees should not be Crown Lifted?
Some trees do not lend themselves to well to an excessive crown Lift. An example of which is Fagus sylvatica (Common Beech), the bark is considered to be fairly thin which may lead to the species being vulnerable to sun scorching
Depending on the size of the tree(s), our experienced tree surgeons will typically climb the tree. Utilising ladder, we'll take it back to growth point. Our qualified arborists will ensure that the crown lift is perfectly level across the bottom of the crown. Naturally all debris is also clear by us.
Ideally half the foliage should originate from branches on the lower two thirds of the tree. Some major branches should be left on the lower half of the trunk.
By leaving some small branches on the lower truck we are able to reduce the injury caused to the tree through the crown lifting process. The smaller branches act as shade for the trunk and also help to speed up the pruning wounds.
You'll need to thin or 'drop crotch' cut the largest branches in the lower part of the tree, but always remember to leave the small ones. A branch will often spring upwards when removing branches from the tips, so this will allow enough clearance to allow the regrowth enough space.
Western Red Cedar
Tree Crown Reduction
During a crown reduction the tree's crown is made smaller without spoiling the shape of the tree. This is very skilled work and often involves a method of pruning called “drop-crotching”. Again it is done to reduce the weight in potentially dangerous trees, but can also be useful if trees are obstructing or damaging buildings or power lines.
Tree Crown Thinning
Crown density is reduced by the removal of selected branches from the whole crown, but the overall shape and size of the tree is maintained. This is normally done as a weight reduction method if a significant structural weakness is identified in the stem or major branches. It is also done to reduce damage that could result from crown resistance to strong winds or to allow more light through a tree.
Tree Crown Cleaning
Removal of dead and dying wood; stumps of broken or poorly cut branches; unwanted epicormic shoots. Crown cleaning can also include the removal of unwanted climbing plants such as ivy or foreign objects such as wires.
Tree pollarding is a method of management where the main leading stem of a young tree is removed to encourage regrowth. The regrowth that then occurs can be regularly removed (re-pollarding) back to the same point (the pollard head).
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From your first consultation we tailor our service to meet your exact requirements and we remove waste timber and foliage for the perfect finish.
Our highly-qualified, expert tree surgery team can tackle any job, from small-scale domestic tree work to tree management on large commercial or development sites.
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Extremely please with the service received. All your staff were amazing and I really appreciated all the pointers they gave. Very helpful all round.
Completed a crown reduction on my mother-in-law's Oak tree. Very impressed with the end result as is her neighbour!!
I was amazed at how good a job The Tree Fellers did on my stump. Thank you so much, the garden looks so much bigger than before!
Very friendly staff both on the phone when booking and the staff who attended my property. Did an excellent job and clearing all the debris afterwards, thanks