2.—(1) In this Act “high hedge” means so much of a barrier to light as—
(a)is formed wholly or predominantly by a line of two or more evergreens; and
(b)rises to a height of more than two metres above ground level.
(2) For the purposes of subsection (1) a line of evergreens is not to be regarded as forming a barrier to light if the existence of gaps significantly affects its overall effect as such a barrier at heights of more than two metres above ground level.
(3) In this section “evergreen” means an evergreen tree or shrub or a semi-evergreen tree or shrub.
(4) But nothing in this Act applies to trees which are growing on land of 0.2 hectares or more in area which is forest or woodland.