pleach

To unite by interweaving, as (horticulture) branches of shrubs, trees, etc., to create a hedge; to interlock, to plash.

Her Vine, the merry chearer of the heart, / Vnpruned, dyes: her Hedges euen pleach'd, / Like Priſoners wildly ouer-growne with hayre, / Put forth diſorder'd Twigs: [...]

Nectar ran / In courteous fountains to all cups outreach'd; / And plunder'd vines, teeming exhaustless, pleach'd / New growth about each shell and pendent lyre; [...]

An act or result of interweaving; specifically, (horticulture) a hedge or lattice created by interweaving the branches of shrubs, trees, etc.

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

A branch of a shrub, tree, etc., used for pleaching; a pleacher.

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, [...]

The pleaches are laid over all in the same direction and stakes are driven in so as to come alternately behind and in front of the stems laid over, but the ends of the pleaches are made to finish all on one side, that is to say, on the opposite side of the hedge to the notches. [...] The hedger treads down his pleaches so as to make a firm and solid hedge and winds round the tops of the stakes long, clean rods of hazel, [...]

A notch cut into a branch so that it can be bent when pleaching is carried out.

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.

When laying hedges, notches (pleaches) are cut in branches that are to be bent (the bent bits must go upwards, otherwise the sap will not run).