overgrown griselinia

Questionsovergrown griselinia
Peggy O'Connor Staff asked 16 years ago

I have a griselinia hedge lined avenue which is 30 odd years old it has formed an arch which I would like to maintain. the only problem is it seems to be dying on me. I have tried to cut out as much dead wood as I can. It has new shoots but these quickly loose their leaves and become bare and also brown or black at the tips. What could I do it would be a shame to loose this beautiful feature. Is pruning an option because these are now more trees than shrubs. thanks