We have a large hedge in our garden that has been pruned to reclaim lots of lost space. over the last 15 years or so the hedge had grown to a height of about 5 metres and a width of 3-4 metres. Most of it has been pruned back leaving the main "trunks" some of which are 6 inches in diameter. many of these have been distorted by the wind and are consequently growing at an angle of about 30 degrees.
If we cut these back further to try to encourage new (vertical) growth will they survive?
Any advice gratefully received.