Here in Central Arkansas I keep a dry pollen substitute out all winter (BEE PRO)I also keep 2-1 sugar syrup in 5 gallon community feeders.If their food stores get low I use the Mountain Camp Method also.We have warm days and cool to cold days.The bees fly and use energy thus eat a lot of food in the hive.I make sure the hive has plenty of ventilation which is a key to winter survival here because of the high humidities.
The mountain camp method is basically putting a sheet of newspaper(wax paper) on top of the frames. Piling some dry sugar on it and spritzing it with water to clump it up (so the bees don't carry the sugar out as trash). It is a quick way to put sugar on a hive instead of fondant or sugar bricks.
I get over a hundred dollars for twenty pounds of honey. I pay less than ten dollars for twenty pounds of sugar. I am not a mathematician but my labor is useless except to me but it seems to work out and I don't lose any colonies to starvation which really bothers me since I am fond of bees.
I?ll usually tip hives to get idea of weight couple times a month during winter. If seems light I?ll make a candy board to put on. Warm (50+ degrees) late feb or March I might pull top and take a look. Maybe feed if needed and pollen paddy