I live in south east texas, we grow blueberries very well, your soil has to be on acid side. And I fertilize with a acid fertilizer every fall and spring. Blackberries do good here also, I grow brazo's, The thornless one's did not grow well and finially died. Raspberries is a lost cause unless you live in pan handle. Amarillo area. Blackberries are heavy feeders, after bearing you have to prune back to 6 inches to ground. I use lots of mulch and manure. Good luck