perfect, will try this with the new ones i get that the weekend and let you know
@matt, could it be wind burn?
Wind born is usually on one side of the plant, where the wind comes from
OK, then it's something systemic causing them to die from root upwards. If it's not underwatering as others have said, then they may well have had some kind of problem. But the healthy looks great, shame when this happens, let us know how you get on with B & Q, it will be interesting to know.
Which compost would you recommend for conifers out of these three?