We've recently moved house and the new place has a very old yew hedge at the front, between the house and the road. There's no pavement and only approx 2m between house and hedge, so it's an important screen. However, it's been badly let go over the years, so the bottom half is bare trunk and the top half is overly wide - like a mushroom. When sitting in my lounge I see car wheels whizzing past through the bottom half. The hedge is approx 2m high.
The RHS advice is to pollard it - to chop it down to six inches and let it start again. I'm up for doing that - I don't mind it looking crap for a while if we get a decent top to bottom thick hedge in the long run.
My question is has anyone done this? Did it work? Did the hedge survive? How long did it take to grow back to a decent height?
Thanks.