Mills

Mills Nutrients are made Holland in their traditional, easy to use, two part base along with additives that provide your plants with everything they need! 

Mills Nutrients are one of the first to develop bio-mineral plant nutrients utilising the best of organic sources and synthetic martials to enhance your growth rates, flavour, potency and yield. 

5 products

  • Mills Vitalise
    MILLS

    Mills Vitalise

    £29.95
    £29.95
    £299.50 l

    VITALIZE by MILLS  Silicon is the single most abundant element in the earth’s crust and of a vital importance to all life on the planet. Everyone...

    Size: 100ML
  • Mills Ultimate PK
    MILLS

    Mills Ultimate PK

    £21.95
    £21.95
    £87.80 l

    ULTIMATE PK by MILLS   This powerful heavy weight bloom booster is designed to be used in the last two to four weeks of the fruiting or flowering stage....

    Size: 250ML
  • Mills Start R
    MILLS

    Mills Start R

    £16.95
    £16.95
    £67.80 l

    Start–R by Mills  This complex bio-stimulant nutrient additive was developed for use during the seeding, growth and early bloom phases of your plants. Start–R is made...

    Size: 250ML
  • Mills C4
    MILLS

    Mills C4

    £21.95
    £21.95
    £87.80 l

    C4 by MILLS  C4 consists of a highly sophisticated blend of not only macro and micronutrients but is combined with bio-stimulants, carbohydrates and trace minerals that focus...

    Size: 250ML
  • Mills Basis A&B
    MILLS

    Mills Basis A&B

    £21.95
    £21.95
    £21.95 l

    BASIS A&B by MILLS  This is a highly concentrated Bio-Mineral base nutrient designed to bring and maintain optimal nutrition, not only in the vegetative state, but...

    Size: 1L
The solution for bio-mineral growth and bloom

Mills Nutrients

Mills Nutrients is the Dutch expert in bio-mineral plant nutrition, trusted by growers for producing clean, consistent nutrients and additives designed to deliver fast uptake, balanced feeding, strong growth, and high-quality yields. Built on Dutch innovation, tested formulas, and a blend of organic and mineral components, Mills products are developed to help growers support healthier roots, stronger plants, improved flavour and aroma, and reliable performance across soil, coco, and hydroponic growing systems.

Mills FAQs

Mills Nutrients specialises in bio-mineral plant nutrients, additives, substrates, and feeding systems designed to support healthy growth, flowering, and crop quality. Their range includes Basis A&B, Start-R, C4, Ultimate PK, Vitalize, and Mills substrate products.

Mills products are designed for use across soil, coco, and hydroponic growing systems. Their Basis A&B base nutrient is listed as compatible with all mediums and growing systems, while the wider feeding system supports plants from vegetative growth through to flowering and harvest.

Mills combines organic and bio-mineral components with naturally derived vitamins to create clean, balanced formulas designed for fast uptake and consistent feeding. Their feeding system is built around Basis A&B for the full crop cycle, with Start-R, C4, Ultimate PK, and Vitalize tailored to different stages of plant development.

Yes. Mills products are designed to be simple enough for newer growers to follow while still offering performance-focused additives for experienced growers. Their starter pack includes Basis A&B, Start-R, C4, Ultimate PK, and Vitalize, giving growers a complete feeding programme from seed to crop.
Everything You Need to Grow

Steel Roots

Steel Roots offers a wide range of high-quality plant nutrients, additives, growing mediums, and feeding solutions designed to support every stage of plant growth and bloom. Carefully selected to support growers at every stage of cultivation, our product range is designed to help create efficient grow spaces and achieve healthier, higher-yielding plants.

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