Posted: 28/02/2013 at 20:36
Doesn't look too bad to me, and not like the box blight I've seen. Maybe a bit of frost damage? Or else it could be irregular watering. Are you going to plant them in the ground or ar they staying in those containers? I think they would be happier in the ground as those containers don't look to be very deep, and they may be at risk of drying out.
I would wait until after the frosts, then give them a clip back, and they should recover OK