Canadian Hemlock Hedge too large
I have a Hemlock hedge (two seperate hemlocks, about 10ft apart) that have been trimmed into a rectangular hedge about 20ft long, 8ft wide and close to 6ft tall.
My problem is that they are right up against the driveway, making it nearly impossible for passengers to get out of cars. I know after reading many many info sites that i can't hard prune them back without leaving big empty branches. So, anyone have any suggestions? Might it be possible for me to allow the tops to grow out and let them attain a more natural tree shape? As it is they are an absolute pain to prune. Any suggestions anyone might have would be much appreciated.