Will this grow back?

Hi I have very little knowledge of anything garden related. Will my hedge grow back does any one think? Or anything I can do to help it? Our drain has been overflowing and leaking into the soil near here with washing machine water. The hedge has slowly progressed across with it’s loss of leaves. We have now fixed the drain situation so contaminated water seeping in is not an issue any more. I’m purly guessing this has been the cause of the leaf loss! Any help would be greatly appreciated. Thanks

 

I've no idea if it will grow back or not but spring is upon us and things are starting to bud. I'd keep a close look out for signs of growth, buds, shoots etc over the next few weeks and see what happens. I'd maybe chuck a big pot plant in there to plug the gap while it either recovers or you replace it. A nice bushy bamboo plant might do it.

 

Have a scratch at the bark fairly low down, see if it is still green underneath.

If it is not bright green I think it will probably mean the roots are dead.

 

The problem with some plants is that although they may be a bit green under the bark high up, it can be residual moisture, you can even sometimes get a few tiny buds forming because there was enough moisture in the sap below them. But if it's not bright green under the bark, low down, it might be dead, but it's worth adapting a "wait and see policy" for three weeks or so yet.