I planted what I think is a PIttosporum variegatum (not sure though) 3 years ago in clay soil and in an area which gets plenty of sun, it has done really well and has grown profusely but I have noticed in the past few weeks a massive leaf drop which has never happened before, is it actually dead or is there anything I can do to save it? This is the first winter the plant has experienced frost and snow so not sure if this leaf drop is normal? all my other evergreens seem fine. Any advice gratefully received! I’ve enclosed before and after pictures.