DUTCHPRO SOIL BLOOM FOR HARD WATER

Description

DutchPro Soil Bloom Hard Water Part B is a professional-grade bloom phase nutrient specifically formulated for use with tap water above 200 ppm calcium carbonate hardness. Used in equal measure with Soil Bloom Part A, it delivers a complete, pH-stable bloom nutrition package that accounts for the mineral composition of hard water rather than fighting it — the correct choice for the majority of UK growers in England, particularly the south and east.

Hard water creates specific challenges in nutrient mixing. The high bicarbonate content buffers pH upward and reacts with certain nutrient ions in ways that cause precipitation before the feed solution even reaches the plant. DutchPro’s Hard Water formula adjusts the mineral balance to account for the calcium and magnesium already present in supply water, delivering the correct overall EC and nutrient ratios in the final mixed solution without pH instability and precipitation risks that affect standard formulations.

The result is a cleaner, more stable feed solution, easier pH management, and consistent nutrient availability across the bloom phase without needing to strip the water back using reverse osmosis. The DutchPro system is refreshingly simple — a small, curated range of base nutrients and additives rather than a complex multi-product programme. Available at The Horticulture Company alongside the full DutchPro nutrient range in both hard and soft water versions.

Browse the full range: Explore our Dutch Pro Nutrients range, part of the wider Nutrients and Additives section at The Horticulture Company. Also in this range: DUTCHPRO SOIL GROW FOR HARD WATER, DUTCHPRO TAKE ROOT, DUTCHPRO SOIL GROW FOR SOFT WATER & RO, DUTCHPRO HYDRO/COCO GROW FOR SOFT WATER & RO.