Blueberries, Containers, & Winter

Hi,
I'm interested in growing highbush blueberries in containers. I live in an urban area that is in USDA agricultural zone 6a. We have very limited indoor storage space, no storage shed, and a small yard. I'd like to leave the blueberry bushes outside when winter returns. Will the blueberries survive? Are special pots needed? Any other special preparations?

maybe varieties a couple zones hardier since there are in containers

for soil i uses half peat moss half potting soil and it works really well for me

for the final containers i use 55 gallon plastic drums cut in half

might want to check your water ph if your irrigating them

i use rain water since my taps alkcaline

The blue berry bush in my 55 gallon sub irrigated planter has over wintered just fine.
I'm in zone 6 as well,in an urban back yard.
The strawberries I planted with them did well, until the chickens got to them!

The biggest issue with any potted plant is root freeze, as long as that doesn't happen plants should do fine in containers.
Bigger containers allow for better root growth and the extra soil can be considered a fairly good freeze blanket.