Some southern high bush varieties will produce small amounts of fruit even with 0 chill. When we had a blueberry field, there were always some berries that came ripe around Thanksgiving. These bushes would have bloomed in September to ripen fruits at that time, so there would have been no possibility for chill in this area. The majority of our fruit came ripe in April, however, after the winter dormancy period. I believe you posted earlier about apples producing in your area. If Anna apples will fruit, so will southern high bush blueberries. Sharpe Blue was one of the ones we used to grow that was pretty low chill and seemed to have good flavor with fewer disease problems. Its probably an "heirloom" cultivar by now since commercial growers have moved on to newer varieties with better harvesting and shipping qualities.