I have 2 blueberry plants in my yard.One is 2 yrs.old and the other is 3 yrs old.Neither has produced any fruit.I have them in 16" clay pots,because the ground is all clay. I had filled the pots with good potting soil,and have fertilizes them during these years with blueberry fertilizer.They both have turned into 7' tall trees,with a 1" trunk.I have never pruned these trees. HELP
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