Since its blueberry season I have been talking to blueberry growers all around and have learned some great things about growing them...
Most important PINE BARK!!!!
~ Blueberries dont need or like soil to grow... stick them in a LARGE tub fill with pine mulch and water them well
~ Use organic potash, and organic nitrogen
DONT SPRAY CHEMICALS ON IT!!!
Blueberries are very durable, and will grow well if you follow the easy steps above.
This is how I plan to grow them...
2 or 3 blocks stacked on top of each other and painted fun designs, for visual appeal. First fill with pine nuggets then sprinkle with potash and organic nitrogen, then do that with the second blocks, put in the plant, and fill all around with more pine nuggets until its filled to the top, give it a good soaking and let GROW!!!!