Hydro Bloom

Hesi Hydro Bloom is the flowering-phase base nutrient for cannabis cultivation in hydroponic systems (NFT, DWC, ebb-and-flow, drip). With an NPK of approximately 3-4-5, it provides elevated phosphorus and potassium compared to Hesi Hydro Growth, shifting the nutrient profile for the increased demands of flower development and resin production.

Like all Hesi base nutrients, Hydro Bloom contains more than just primary NPK — it includes calcium, magnesium, sulphur, and a complete trace element profile alongside B vitamins, amino acids, and vegetable sugars. These additions support the enzymatic processes behind terpene synthesis and flower maturation, going beyond what a simple PK ratio provides.

Hesi Hydro Bloom covers the first stage of the flowering period. As bloom progresses, add Hesi Boost as a flowering trigger and PK 13-14 for the final PK surge in the last weeks of flowering. It's a fully water-soluble formula designed for recirculating systems — completely stable in reservoir and won't clog drippers or spray nozzles.