Assarting is the act of clearing forested lands for use in agriculture or other purposes. In English land law, it was illegal to assart any part of a Royal forest without permission. This was the greatest trespass that could be committed in a forest, being more than a waste: for whereas waste of the forest involves felling trees and shrubs, this vegetation can grow again; assarting involves completely rooting up all trees — the total extirpation of the forested area.
The term ‘assart’ was also used for a parcel of land assarted. Assart rents were those paid to the British Crown for the forest lands assarted. The word origin is from the French word essarter meaning to remove or grub out woodland. In northern England this is referred to as ‘ridding’.
In the Middle Ages, the land cleared was usually common land but after assarting the space became privately used. The process took several forms. Usually it was done by one farmer who hacked out a clearing from the woodland, leaving a hedged field. However, sometimes groups of individuals or even entire villages did the work and the results were divided into strips and shared among tenant farmers. Monastic communities, particularly the Cistercians, sometimes assarted, as well as local lords. The cleared land often leaves behind an assart hedge, which often contains a high number of woodland trees such as small leafed lime or wild service and contains trees that rarely colonise planted hedges, such as hazel. Examples are in Dorset, where there is a difference in the hedges in the west and the east of the county, at Hatfield Broadoak in Essex where the modern hedges still follow the boundaries of an ancient forest, and at Shelley in Suffolk where there is an unusually long hedge made up of coppiced lime trees that is the remnant of a nineteenth-century woodland clearance.