Broadleaf Griselinia littoralis Dying along with adjacent grass
I have a hedge on my bungalows southern border. It is about 30 feet long. Suddenly (about 2 months ago) it started to shed it's leaves and die off. Now about half the length of the hedge has died. Interestingly the adjacent grass has died off. Could this be a natural end to the plant or does the adjacent brown grass suggest some sort of poisoning? This happened to the other half of the hedge about 10 years ago but I can't remember on that occasion if the adjacent grass had also died. Any ideas what could have cause this? Is it safe to dig up and replant with the same? Any tips on how to do this successfully would be much appreciated.