A boundary hedge has grown too high and wide for its own trunks/stems/stalks.
The hedge used to be supported by a wooden frame but that rotted away.
The hedge is currently the perfect height etc as a boundary but can't support it's own weight.
I can only think off giving it a severe trim in both height and width but am worried about killing it.
Option 2 is to support again but I can't see how to get in there to hammer in some stakes and rails.
The hedge isn't mine so having it out and putting up a fence isn't an option.
I'll try to add some pictures / any advice would be gratefully received.