Tree pollarding is an arboricultural pruning method that controls a tree’s natural growth and size. It involves trimming the tree’s upper branches back, leaving only the main framework intact. Generally, the “main framework” will consist of just the stem/ trunk and a few primary branches. Regularly pollarded trees develop distinct knobby growths at the ends of their remaining limbs.
Why are trees pollarded?
There are many reasons to pollard trees, including but not limited to the following:
- To increase the lifespan of the tree.
- To prevent the tree from outgrowing its environment.
- To reduce shade cast from the canopy.
- To prevent interference with overhead wires such as powerlines.
- To avoid blocking streetlights or signs.
- To prevent obstructing the visibility of drivers and pedestrians.
- To allow vehicle passage.
- To minimise leaf and branch debris.
- To manage root growth.
- To improve air circulation.
For further information about tree pollarding from a certified arborist or tree surgeon North London Tree Surgeons are the specialists to call.
Contact the North London Tree Surgeons friendly team for free pollarding advice or site and quotation without obligation.
Essential information about pollarding trees in the UK
When to pollard trees
The best time to begin pollarding a tree is as soon as it reaches the desired height at which you want it to remain. Pollarded trees should be re-pollarded annually to maintain their size and height. If a tree pollarded tree is not routinely re-pollarded, this can lead to limb failure or other complications.
Best time for pollarding trees
Typically, the best time for pollarding trees is late winter or early spring when trees are dormant and sap levels are low. Doing so reduces stress, bleeding, and the risk of infection, pests and diseases.
Worst time for pollarding trees
Generally speaking, it’s best to avoid pollarding trees in the summer, with some exceptions, such as fruit trees and walnuts, which may benefit from summer pollarding.
Trees suitable for pollarding
Many UK tree species are suitable for pollarding, and regular pruning can even help rejuvenate some species. A few tree species ideal for pollarding include:
- Ash
- Eucalyptus
- Common lime
- London plane
- Oak (Quercus)
- Elm (Ulmus)
- Elder (Sambucus)
- Mulberry (Morus)
- Tulip tree (Liriodendron)
- Some species of Sycamore (Acer negundo)
Most small, broad-leaved deciduous trees can be successfully pollarded if they can produce epicomic growth or water shoots. Large deciduous trees and some evergreens, particularly conifers, don’t respond well to pollarding.
How to pollard trees correctly
Before pollarding any tree in the UK, check to see if it’s under a Tree Preservation Order (TPO) or in a conservation area to avoid fines or legal issues. For young trees, once the trunk reaches the desired height, prune back branches in late winter or early spring, choosing 3-5 branches to form the pollard framework for the tree. Routine pollarding will, over time, strengthen the new growth and create the characteristic knuckles associated with pollarded trees.
How to maintain a pollarded tree
For best results, re-pollard the tree annually or every 2-3 years to avoid safety issues or complications. When pollarding, cut just above the previous pollarding points.
Rejuvenating a neglected pollard
If a previously pollarded tree has been neglected for over three years, we recommend consulting a professional arborist. Pollarded trees, if neglected, often develop weakened branch unions, which can jeopardise the tree’s health and safety. An experienced arborist can assess a neglected tree and prune back weakened branches to help improve the tree’s health and stability.
Problems with pollarding trees
Some tree species, such as poplars and willows, can become dangerous due to weak branch unions, which may pose a risk to property or public safety. With this in mind, when pollarding willow trees and poplars, they must be re-pollarded regularly. Tree species such as beech, oak, and sweet chestnut are particularly susceptible to branch failure if they aren’t re-pollarded. If you’re concerned about a pollarded tree, we offer expert tree surveys and inspections to identify safety issues.
Pollarding vs Topping
Pollarding and topping are often confused, but they differ significantly. Pollarding is a healthy, thought-through pruning technique that considers future growth, whereas topping is a harsh measure to reduce tree height. Topping is a bad practice, which may a tree may lead to large open wounds, rapid regrowth, dieback, and even the complete death of the tree.
Coppicing vs Pollarding
Coppicing is another heavy pruning technique which involves cutting trees at the base to promote the growth of straight branches. Tree coppicing is an effective way to produce firewood and timber for wood products. Pollarding differs from coppicing in that the cuts are higher to protect new growth from grazing animals.
North London Tree Surgeons are skilled and have experience coppicing and pollarding trees across North London.
If you require professional and fully insured tree pollarding in North London, contact North London Tree Surgeons today.
Tree Pollarding FAQs
Can pollarding kill a tree?
Performing a pollard incorrectly or pollarding an unsuitable tree may lead to poor tree health or potentially kill it entirely. On the other hand, a well-timed and executed pollard can rejuvenate a tree’s health and increase its longevity.
Is pollarding bad for trees?
When pollarding is performed correctly on a suitable tree, it can benefit the tree. However, poorly executed pollards on unsuitable trees are bad for them. Bad pollards are harmful to trees’ health and may lead to issues with safety or their eventual demise.
Is pollarding good for trees?
Correctly pollarding a suitable tree can benefit it in several ways. For example, pollarding can stimulate growth, improve a tree’s health, and extend its lifespan.
When to pollard trees UK?
Pollarding trees is recommended in the months of late winter and early spring. During this period, the trees will be dormant, and their sap levels will be low. By pollarding trees in their dormancy with low sap levels, stress on the tree is reduced, and sap bleed is limited.
Which trees can be pollarded?
Many tree species can be pollarded, including common lime, ash, London plane, and eucalyptus trees. While many tree species are suitable, each should be assessed individually. The tree’s age, species and condition should all be considered before making a decision.
How much to pollard a tree?
As with any tree surgery project, the cost will vary depending on its size and complexity. However, as a rough guide, the average cost to pollard a medium tree in the UK is between £400 and £1000. Contact our team today for a fixed and free quotation for tree pollarding in North London.
