On 24 Feb, 14:40, Sacha wrote:
It really does depend on what size plant the OP bought. If it's a baby in a
one litre pot, putting it into the much larger, final sized pot he has in
mind for a full grown bush, would not do it any good.

All blueberries are sold in 2 or 3 litres pot, not 1 litre pot. They
are shrubs.