As you can see form the picture there are 4 leylandii trees that have grown into the hedge.it was getting difficult to maintain these so in my own head I thought it better to see if instead of getting rid of it, I could prune it to look like a tree instead. so I started removing the bottoms only to learn than the inside is very much dead and brown and I understand leylandii doesn't regrow from inside rather it will grow green on the ends.
I want to keep the tree and make it more airy so it can continue to grow but not as a hedge. This will help make the garden look bigger and I can grown grass underneath it(whcih will also get sufficient rain directly theoufht eh water trickling down the trees) Any suggestions on how I can prune and get rid of the brown ?
Hope I am making sense here . I am not gardening expert but a big fan of DIY.