pleach

Not a dryad of the beeches, / Through the filmy forest-reaches, / That a tress of summer pleaches, / But had owned her queen; …

These stems should be stripped (or nearly so) of their branches, and notched at the bottom (in the way which every hedger knows) to form a pleach: these pleaches should be laid in the intervals along the line of the stubs, and again notched, …

Traditional hedge laying involves, first, clearing away undergrowth and weeds, particularly from a hedge that has been neglected and allowed to grow tall. Untidy side branches are removed. A cut, known as a pleach, is made in the back of the trunk, leaving a 'hinge'; old-time hedgers recommend that this should be as thick as a lamb's tongue.