Description
Flower Burst is a potent phosphorus and potassium bloom booster designed to be introduced during the peak flowering phase to drive an accelerated, abundant flowering response. Flower Burst provides a concentrated PK surge that supports the explosive bud development occurring in the final four to six weeks of flowering, when plants have the highest demand for these two key macronutrients and when the quality of nutrition delivered determines final yield weight and product quality.
Why PK Boosters Matter During Late Flower
During the flowering phase, plants shift their metabolic resources from vegetative growth to reproductive development. This transition dramatically changes nutritional requirements. Nitrogen demand falls as leaf and stem growth slows. Phosphorus and potassium demand rises sharply — phosphorus drives the energetics of sugar transport and cell division in developing flowers, while potassium regulates water balance, activates enzyme systems, and is directly involved in the accumulation of complex compounds that determine the quality of your final harvest. A standard base nutrient alone rarely provides PK concentrations at the level that peak-flowering plants can utilise efficiently. Dedicated bloom boosters like Flower Burst fill this gap, delivering a targeted PK pulse that pushes plants into a more intense flowering response than base nutrition alone can achieve. At The Horticulture Company we have seen consistent results with quality PK boosters across many growing seasons and growing systems.
When and How to Use Flower Burst
Introduce Flower Burst from weeks three to four of flowering, once bud sites have clearly formed and are beginning to swell. Continue through to approximately two weeks before your target harvest date, then stop and begin your pre-harvest flush with clean water. Use Flower Burst alongside your standard base nutrient rather than as a replacement. Mix at the recommended dosage per litre of nutrient solution and pH-adjust the complete solution before feeding. Monitor EC carefully when adding bloom boosters — the combined EC of base nutrient plus Flower Burst should not exceed the tolerance of your specific plant variety. Flower Burst is compatible with all growing media — soil, coco, clay pebbles, rockwool, and NFT systems — and works alongside all major base nutrient brands without compatibility issues.







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