Boost is a nutrient supplement designed to be used in the final few weeks before harvest. Boost allows the grower easy control of the extra phosphorus and potassium that can lead to bumper yields. Boost is an ideal addition to Ionic Bloom but it can also be used very effectively with any good quality nutrient solution of the Bloom variety. Ionic bloom is specially formulated to deliver the key elements phosphorus (P) and potassium (K) in a pure form that is instantly accessible to the plant. These crucial ingredients are used in abundance by plants in their flowering cycle and the extra levels provided by Boost can lead to larger flowers and much heavier crops.