What it is
Pollarding is a traditional pruning system: the tree's upper crown is removed back to a set point ('pollard head') and then cyclically re-cut every few years to control size while maintaining a mature, characterful tree. It's very different from topping — pollarding is a planned management system carried out on suitable species from a young age, or a continuation of an existing pollard cycle on an older tree.
Who it's for
Homeowners who inherit an already-pollarded tree that needs its next re-cut; landowners with pollard-tolerant species (lime, willow, London plane, some willows and poplars) that need long-term size control; and property owners retaining mature amenity trees where a full reduction would be inappropriate.
When it's needed
Established pollards need re-cutting on a cycle — often 2–5 years depending on species and vigour. Neglected pollards left for decades can sometimes be restored, but the results depend on species and previous management. New pollards should only be initiated on young, suitable trees.
Why professional help matters
Pollarding is one of the oldest arboricultural techniques and, done properly, can keep a tree alive far longer than it would naturally live. Done wrongly — or applied to a species that doesn't tolerate it — it kills or ruins the tree. Species selection, cut placement and timing all matter.