I have an Arbor Vitae hedge which I need to trim back on one side. The plants are around 3 meters in height and 1 meter in diameter. In order to get proper clearance I would need to remove all material from the ground up to 1 meter above the ground, and cut all the way to the trunk(s). I realise this will not be pretty, but will it kill the plant or disturb the appearance on the other side?