List of products by brand Hesi

Additional vital substances act as a balm on the plants increasing their energy. This makes growing indoor, garden and patio plants a real pleasure.

Hesi: Dutch-Engineered Plant Nutrition Since 1996

Hesi has delivered consistent, research-backed plant nutrition from its production facility in Kerkrade, the Netherlands since 1996. Founded by Henk IJpelaar and Siglinde Winkler — whose combined initials form the brand name — the company develops, manufactures, and packages all products in-house. What distinguishes Hesi technically is the inclusion of amino acids, enzymes, and plant sugars as standard components across the entire range, enhancing nutrient uptake and plant vitality. At Plant and Flower, access the complete Hesi lineup within our nutrients selection. Order before 2 PM for next-day delivery via Bpost across Belgium and the Benelux.

Universal Formulation Approach

Hesi took a fundamentally different approach to product architecture. Rather than creating species-specific formulas, the R&D team developed universal nutrient compositions optimised per growth phase. This means fewer products cover more applications, reducing complexity for the grower without compromising results. The original formulations developed by Siglinde — a scientist by training — remain the quality benchmark today, utilising only premium-grade raw materials with no cost-cutting substitutions over 25+ years of production.

Substrate-Specific Product Lines

Hesi offers complete nutrition systems tailored to three primary growing media:

  • Soil: TNT Complex (vegetative), Bloom Complex (flowering), Root Complex, PowerZyme for substrate conditioning, plus SuperVit and Boost as concentrated biostimulants.
  • Hydro: Hydro Growth and Hydro Bloom, formulated for the reduced buffering capacity of hydroponic systems and aeroponics.
  • Coco: Hesi Coco delivers complete growth and bloom nutrition in a single bottle optimised for coco coir substrates.

The Hesi StarterBox bundles all essential products for a complete cycle covering approximately 1m². Browse the full Hesi collection with fast shipping via Bpost throughout Belgium and the Benelux.

Frequently Asked Questions About Hesi

What is the delivery time for Hesi products in Belgium?

Plant and Flower dispatches Hesi orders within 24 hours when placed before 2 PM. We ship via Bpost to all addresses in Belgium and the wider Benelux region. A tracking code is provided as soon as your parcel is shipped from our warehouse.

What makes Hesi different from other nutrient brands?

Hesi includes amino acids, enzymes, and plant sugars as standard ingredients across all products, components that many competitors sell as separate supplements. The universal growth-phase formulation approach also means fewer products are needed for a complete feeding programme regardless of plant species.

Which Hesi StarterBox should I choose?

Select based on your growing medium. The Soil StarterBox suits traditional earth cultivation, the Hydro version covers rockwool and DWC systems, and the Coco StarterBox is designed for coco coir substrates. Each box contains all products needed for one complete growth cycle on approximately 1m².

There are 18 products.

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