Pete Mantle
Hello Gabriel, In my experience it's uncommon - but it does happen occasionally. Usually long after the 'hedge' is still a hedge and has become (due to lack of regular pruning) a small tree. Privets, like Box plants can, over many years, reach 20ft and form large clump like roots which are difficult to dig out. In fact I've known a few cases where it was easier to knock down a small wall and start again. If you keep your hedge regularly clipped to 6 or 7 ft there should be no problems however
