Collection: Hydroponic Nutrients & Plant Feed

Shop hydroponic nutrients and plant feed for indoor growing across hydroponic systems, coco coir and soil. The SteelRoots range includes base grow and bloom nutrients, flowering boosters, root and growth additives, CalMag and nutrient supplements, organic fertilisers, enzymes, propagation nutrients, foliar feeds, mycorrhizal products and flushing and finishing formulas.

Choose from established plant nutrition brands including CANNA, Athena, Advanced Nutrients, BioBizz, SHOGUN, Plagron, Dutch Pro, VitaLink, Nutrifield, Growth Technology, Plant Magic, House & Garden and Growers Ark. The collection covers complete base-feeding programmes alongside specialist additives and supplements, making it easier to find plant nutrition for different growth stages, growing media and feeding systems.

Nutrient formulations, application methods and suitability vary between products. Check the individual product instructions when selecting nutrients for hydroponic, coco or soil growing, particularly when combining base nutrients with boosters, supplements or additives. For help working out nutrient quantities by reservoir size and growth stage, use the SteelRoots Hydroponic Nutrient Calculator.

  • Growth Technology

    Growth Technology Superthrive | Premium Plant Vitamin & Hormone

    Regular price £7.25
    Sale price £7.25 Regular price

    Superthrive distributed by Growth Technology is a legendary, non-toxic, highly concentrated vitamin and hormone plant solution. It is not a standard NPK fertilizer. Instead, it works as...

    Size: 100ML
  • Superthrive

    Superthrive Plant Vitamin Solution | Root & Growth Tonic

    Regular price £14.00
    Sale price £14.00 Regular price

    Detailed Product Description Give your garden the ultimate survival advantage with Superthrive Plant Vitamin Solution Trusted by professional horticulturists, home gardeners, and award-winning growers since 1940, this legendary...

    Size: 120ML/4OZ
  • Buddha's Tree

    Buddhas Tree Organicus

    Regular price £12.95
    Sale price £12.95 Regular price

    ORGANICUS by BUDDHAS TREE The Organicus liquid plant food by BUDDHAS TREE is a 99% premium organic feed that surpasses all previous feeds available on the...

    Size: 1L
  • Indica Nutrients

    Indica Cal Mag

    Regular price £4.95
    Sale price £4.95 Regular price

    Keeping your crop strong & crisp! Build a strong and healthy crop by using Indica Cal-Mag in your grow schedule. Calcium is essential for building strong cell walls...

    Size: 250ML
  • Crazy Hills

    Crazy Hills Elan | Organic Amino Acid & Kelp Biostimulant

    Regular price £39.95
    Sale price £39.95 Regular price

    Crazy Hills Élan (All-In-One Plant Booster) Product OverviewCrazy Hills Élan is a concentrated organic biostimulant formulated with premium amino acids, humic substances, and cold-pressed Arctic seaweed...

    Size: 1L
  • Evoponic

    Evoponic Liquid Ice | Heat & Drought Crop Stress Protection

    Regular price £19.95
    Sale price £19.95 Regular price

    Liquid iceProtects against overheatingLiquid Ice will keep your plants growing to their full potential, even when exposed to temperatures well out of their ideal ranges. It...

  • Save £5.04
    New Millennium

    New Millennium Decision 1 QT (946ml) | Ultimate Bloom Transition & Canopy Control Additive

    Regular price £49.95
    Sale price £49.95 Regular price £54.99

    Maximize your harvest potential with New Millennium Decision 1 QT (946ml), the premier hydroponic bloom transition supplement designed to master the critical shift from vegetative growth...

  • Evoponic

    Evoponic BBC 120g

    Regular price £24.95
    Sale price £24.95 Regular price

    BBC1(Beneficial Bacterial Culture ONE)20 million colony forming units per gram of product. We screen over 3000 strains and chose a combination that work TOGETHER, not in...

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