Posted: 04/01/2016 at 18:24
Re reading your post Emily cos I misread in my haste. so they were out all last summer? This will be their second summer? They should have grown. Try scratching the bark to see if there is any sign of green beneath.
I would not have expected them to die without water over the winter.....look miserable yes but have recovered last summer
not a lot you can do except see what happens in spring.