i'm in Zone 7a. None of my 3 winter Camellias (japonica) bloomed this year. the Camellia Society advised me on Transplanting, and we were mindful to get a good root bulb spring 2017 when we moved 2 of them. Those 2 were prune by 1/3 the week we prepped soil before digging. They now get afternoon sun (as they did before). Even the 3rd one didnt bloom so im believing this had more to do with the bitter cold Jan weather (many weeks at single digits). What do i do now ? prune more? azalea/camellia food?