Hedge laying
Hedge laying is a country skill practised in the United Kingdom and Ireland. Creating and maintaining hedges provides
livestock-proof barriers;
rejuvenation of existing hedgerows by encouraging them to put on new growth, and thus helping to improve their overall structure and strength;
weather protection for crops and wildlife; and
aesthetically pleasing screens to fields and gardens.
Theory
The theory behind laying a hedge is easy. The practice is much harder, requiring skill and experience. The aim is to reduce the thickness of the upright stems of the hedgerow trees by cutting away the wood on one side of the stem and in line with the course of the hedge. This being done, each remaining stem is laid down towards the horizontal, along the length of the hedge.
A stem which has been (or is to be) laid down in this manner is known as a "pleacher". A section of bark and some sapwood must be left connecting a pleacher to its roots in order to keep the pleacher alive—knowing how much is one part of the art of hedgelaying. The angle at which the pleach or pleacher is laid at is a factor in the "build" of a hedge - hedges are built to a height according to what purpose they are intended for. The height and condition of the trimmed stool ("stobbin" and other local names apply) is vital as this is where the strongest new growth will come from. In time the pleaches (pleachers) will die but by then a new stem should have grown, from the stool, from ground level, which replaces the laid one (pleach). This process takes from eight to fifteen years, after which, if the hedge has not been trimmed, the hedgelaying process can be repeated. Hedges can be trimmed for many years after laying before allowing the top to grow to a sufficient height to lay again.