Removal of upper branches
Pollarding is a pruning system in which the upper branches of a tree are removed, promoting a dense head of foliage and branches.
It is deployed today in urban areas worldwide, primarily to maintain trees at a predetermined height.
Pollarding is a pruning system developed to manipulate tree size. London Plane and Lime are species typically selected for this treatment, but other species of large trees may also be found as pollards.
They are recognised by their appearance in having a multiple of stems on a single trunk. Each stem terminates at its top with a club like swelling to the stem commonly referred to as a pollard head.
New growth from these pollard head structures appears during the growth season, March to September as a cluster of vigorous and densely crowded branches, of roughly equal size. It is these branches that are removed back to the point of growth on the pollard head during the works process of re-pollarding.