Description
Hydrotops Top Heavy Crop is a high-potency bloom booster and PK supplement from Hydrotops, formulated to drive exceptional flower mass, density and weight during the peak bloom phase of the growing cycle. We have been recommending Hydrotops bloom additives to UK cultivators since 2017, and Top Heavy Crop is one of the brand’s most effective products for growers who want to push final yield weight to the maximum.
Peak Bloom Nutrition for Maximum Flower Weight
Top Heavy Crop delivers an elevated phosphorus and potassium ratio alongside a blend of secondary mineral cofactors and organic growth stimulants that collectively maximise flower cell division, expansion and dry matter accumulation during the critical mid-bloom phase. Phosphorus is the primary energy currency of flowering — driving the synthesis of ATP, the formation of new cell walls, and the metabolic pathways that produce the sugars, terpenes and resins that make up harvest quality and weight. Potassium complements this by regulating water uptake in developing flowers and activating the enzymes responsible for starch and sugar synthesis.
Unlike basic monoammonium phosphate or potassium sulphate PK products, Top Heavy Crop combines these macro-minerals with Hydrotops’ organic Bioponic matrix, which supports soil and coco food web activity and improves the biological availability of minerals throughout the root zone simultaneously.
Integration with the Hydrotops Programme
Introduce Top Heavy Crop from week two or three of flowering and continue through to week six or one week before flush. Apply at the manufacturer’s recommended rate alongside your Hydrotops base nutrient — Flower Feed, Hydro Bloom or Coco Bloom depending on your growing system. Monitor EC and reduce base nutrient concentration slightly when stacking additives to maintain total EC within your target range.
Combines effectively with Hydrotops Triple F and Floral Boost for a complete Bioponic bloom programme. Also compatible with other premium nutrient brands. Finish with a quality flushing agent before harvest for clean-tasting, market-quality flowers.







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