Bloom A and B gives support to a plants natural growth by supplying a range of macro and micro nutrients, which are needed to give a plant the best possible start in flower development and aids in fighting environmental stresses.
The potassium aids in fruit quality and calcium provides for normal transport and retention of other elements. Magnesium helps to activate many plant enzymes needed for growth.
Every element in Bloom A and B plays a role in helping to produce the best quality fruit or flower within the bloom stage of a plants life cycle.