Posted: 26/07/2014 at 22:32
Robert, from your picture the hedge is too wide at the top, it should be wider at the bottom, it's also quite heavily shaded by the Pieris and the rhododendron to the left of the path. It needs light at the base and if you cut the hedge as in the picture you are cutting too deeply. Privet should be trimmed lightly regularly every 2 months during the growing season. Light at the base will encourage new shoots, and if it's like the picture, mulch to a depth of 6 inches around the base of the hedge as well, you'll get new growth if you do. The alternative is to cut it down to a foot high and let it regrow.