I buy it in the garden section marked"steamed bonemeal" I assume that they mean it is "cooked",and not "raw". Raw would smell/spoil pretty quick, I would think. All it does for the plant is provide a slow release source of phosphate, which helps in root growth and flower formation. I would fertilize twice a year, as I stated above. it's possible that competition from the tree roots is stealing the nutrients / moisture....Arlyn
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