Cutting back lawsoniana hedge
I have recently moved into a property that has a 5' thick 9' high lawsoniana hedge that clearly hasn't been cut for quite some time. There is a new flower border just in front of it and the hedge keeps off the morning sun.
I want to cut the hedge right back to 5' hight and 3' width. Will it survive and sprout out again or would this kill it.
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don't go into old brown growth. It's highly unlikely to re-shoot.
If you cut back to bare branches, as Hostafan1 says, it will not re shoot. You can safely cut off the top quite severely but not the sides; just trim them.
OK, that's what I feared.
Many thanks for your advice.