PLAGRON

Shop Plagron plant nutrients and growing additives at SteelRoots. The Plagron range includes base nutrients for soil, coco and hydroponic systems, alongside products for root development, nutrient management and flowering. Compare the products below to find a formulation suited to the growing medium and stage.

Plagron Nutrients for Soil, Coco and Hydroponics

Choosing a base nutrient that matches the growing medium is the starting point for a Plagron feeding programme. Plagron Terra Bloom is a flowering nutrient for soil, Plagron Cocos A&B is a two-part base nutrient for coco, and Plagron Hydro A&B is a two-part base nutrient for hydroponic growing. Check each product page for application instructions and available sizes.

Read more about Plagron nutrients and additives

Plagron Additives and Boosters

The SteelRoots Plagron collection includes targeted additives for different stages of growth. Power Roots is a root stimulator used during early development, while Pure Zym is an enzyme soil improver that helps break down dead plant material in the growing medium. For flowering programmes, the range includes Power Buds, PK 13-14 and Sugar Royal. Follow each product’s own label and feeding guidance.

Which Plagron Products Should You Choose?

  • Growing in soil? Explore Terra Bloom and check that any selected additives suit the growing medium and feeding programme.
  • Growing in coco? Start with Cocos A&B, a base nutrient formulated for coco substrates.
  • Growing hydroponically? Explore Hydro A&B and check system compatibility before adding other products.
  • Looking for a specific additive? Compare Power Roots, Pure Zym, Power Buds, Sugar Royal and PK 13-14 by their intended use.

SteelRoots offers specialist growing advice from its Chesterfield shop, with delivery available across the UK. Browse the Plagron products below for current sizes, prices and availability.

  • Plagron Power Buds 250 ml, 500 ml and 1 litre bottles with 5 litre, 10 litre and 20 litre jerrycans on a white background.Plagron Power Buds 250 ml purple bottle with white cap on a white background.
    Plagron Power Buds 250 ml, 500 ml and 1 litre bottles with 5 litre, 10 litre and 20 litre jerrycans on a white background.Plagron Power Buds 250 ml purple bottle with white cap on a white background.
    Plagron Power Buds 500 ml purple bottle with white cap on a white background.Plagron Power Buds 250 ml purple bottle with white cap on a white background.
    Plagron Power Buds 1 litre purple bottle with white cap on a white background.Plagron Power Buds 250 ml purple bottle with white cap on a white background.
    Plagron Power Buds 5 litre purple jerrycan on a white backgroundPlagron Power Buds 250 ml purple bottle with white cap on a white background.
    Plagron Power Buds 10 litre purple jerrycan with purple product label on a white backgroundPlagron Power Buds 250 ml purple bottle with white cap on a white background.
    Plagron Power Buds 20 litre purple jerrycan on a white background.Plagron Power Buds 250 ml purple bottle with white cap on a white background.
    PLAGRON

    Plagron Power Buds | Flowering Biostimulant

    £16.99
    £16.99
    £67.96 l

    Plagron Power Buds is a liquid flowering biostimulant designed to support flower formation as plants move from growth into flowering. It can be added alongside a...

    SIZE: 250 ML
  • Plagron Hydro A and B hydroponic nutrient bottles and canistersPlagron Hydro A and Hydro B 1 litre bottle set
    Plagron Hydro A and B hydroponic nutrient bottles and canistersPlagron Hydro A and Hydro B 1 litre bottle set
    Plagron Hydro A and Hydro B 5 litre canister setPlagron Hydro A and Hydro B 1 litre bottle set
    PLAGRON

    Plagron Hydro A&B Two-Part Hydroponic Base Nutrient Set

    £15.00
    £15.00
    £15.00 l

    Plagron Hydro A&B is a two-part mineral base nutrient for plants grown in hydroponic systems. The matched Hydro A and Hydro B concentrates provide nutrition throughout...

    size: 1 LTR
  • Plagron power roots additive containers on a white backgroundPlagron Power Roots 250 ml purple bottle with white cap on a white background.
    Plagron power roots additive containers on a white backgroundPlagron Power Roots 250 ml purple bottle with white cap on a white background.
    Plagron Power Roots 500 ml purple bottle with white cap on a white background.Plagron Power Roots 250 ml purple bottle with white cap on a white background.
    Plagron Power Roots 1 litre purple bottle with white cap on a white background.Plagron Power Roots 250 ml purple bottle with white cap on a white background.
    Plagron Power Roots 5 litre purple jerrycan on a white background.Plagron Power Roots 250 ml purple bottle with white cap on a white background.
    PLAGRON

    Plagron Power Roots | Root Stimulator for Soil & Coco

    £18.00
    £18.00
    £72.00 l

    Plagron Power Roots Root Stimulator Plagron Power Roots is a root-strengthening additive for plants grown in soil, peat and coco. Its formula contains humic acids, seaweed...

    SIZE: 250 ML
  • Plagron Cocos A & B nutrient sets in 1L, 5L and 10L sizes for coco growingPlagron Cocos A & B 5L nutrients with 5L measuring jug in hydroponic mixing facility
    Plagron Cocos A & B nutrient sets in 1L, 5L and 10L sizes for coco growingPlagron Cocos A & B 5L nutrients with 5L measuring jug in hydroponic mixing facility
    Two purple plastic jugs of Plagron Coco basic nutrient, labeled 'cocos a.' and 'cocos b.', on a clean white background.Plagron Cocos A & B 5L nutrients with 5L measuring jug in hydroponic mixing facility
    Two purple plastic jugs of PLAGRON Cocos a. and b 10 litre set basic nutrient, 100% Coco, shown on a white background.Plagron Cocos A & B 5L nutrients with 5L measuring jug in hydroponic mixing facility
    PLAGRON

    Plagron Cocos A&B Set | Two-Part Coco Base Nutrient

    £12.95
    £12.95 £12.95
    £12.95 l

    Two-Part Base Nutrients for Coco Growing Plagron Cocos A&B is a concentrated, two-part mineral base nutrient developed for plants grown in buffered coco coir. The matched...

    Size: 1 LTR
  • Plagron Terra Bloom base nutrient in 1L and 5L sizesA woman in a garden pours red liquid from a purple and pink Plagron Terra Bloom bottle into a black bucket.
    Plagron Terra Bloom base nutrient in 1L and 5L sizesA woman in a garden pours red liquid from a purple and pink Plagron Terra Bloom bottle into a black bucket.
    Plagron Terra Bloom 5L base nutrient for flowering plantsA woman in a garden pours red liquid from a purple and pink Plagron Terra Bloom bottle into a black bucket.
    PLAGRON

    Plagron Terra Bloom | Flowering Base Nutrient for Soil

    £10.95
    £10.95
    £10.95 l

    Complete Flowering Nutrient for Soil Growing Plagron Terra Bloom is a complete mineral base nutrient for plants grown in soil and peat-based growing media during the...

    Size: 1 LTR
  • Plagron Sugar Royal 250 ml, 500 ml and 1 litre bottles alongside the 5 litre purple jerrycan on a white background.Plagron Sugar Royal 250 ml purple bottle with white cap on a white background
    Plagron Sugar Royal 250 ml, 500 ml and 1 litre bottles alongside the 5 litre purple jerrycan on a white background.Plagron Sugar Royal 250 ml purple bottle with white cap on a white background
    A 1-liter bottle of Plagron Universal Sugar Royal additive enhancer, featuring a purple label and white cap on a clean white background.Plagron Sugar Royal 250 ml purple bottle with white cap on a white background
    A 500 ml bottle of Plagron Universal Sugar Royal additive enhancer, featuring a purple and white label with a white cap, on a clean white background.Plagron Sugar Royal 250 ml purple bottle with white cap on a white background
    Plagron Sugar Royal 250 ml purple bottle with white cap on a white background
    PLAGRON

    Plagron Sugar Royal | Amino Acid Booster for Flavour & Aroma

    £25.00
    £25.00
    £100.00 l

    Plagron Sugar Royal – Amino Acid Booster for Flavour and Aroma Plagron Sugar Royal is a liquid plant booster designed to support the flavour and aroma...

    SIZE: 250 ML
  • Plagron Pure Zym enzyme additive family range in 250ml, 500ml, 1L, 5L and 10L sizesPlagron Pure Zym 250ml enzyme additive for hydroponic growing
    Plagron Pure Zym enzyme additive family range in 250ml, 500ml, 1L, 5L and 10L sizesPlagron Pure Zym 250ml enzyme additive for hydroponic growing
    Plagron Pure Zym 500ml enzyme additive for hydroponic growingPlagron Pure Zym 250ml enzyme additive for hydroponic growing
    Plagron Pure Zym 1L enzyme additive for hydroponic growingPlagron Pure Zym 250ml enzyme additive for hydroponic growing
    Plagron Pure Zym 5L enzyme additive for hydroponic growingPlagron Pure Zym 250ml enzyme additive for hydroponic growing
    Plagron Pure Zym 10L enzyme additive for hydroponic growingPlagron Pure Zym 250ml enzyme additive for hydroponic growing
    PLAGRON

    Plagron Pure Zym | Enzyme Soil Improver for Growing Media

    £4.75
    £4.75

    Plagron Pure Zym Enzyme Soil Improver Plagron Pure Zym is a liquid soil improver made with natural enzymes. It helps break down dead plant material in...

    SIZE: 250 ML
  • Plagron PK 13-14 additive range in 250ml, 500ml, 1L, 5L and 10L sizesPlagron PK 13-14 | Phosphorus & Potassium Flowering Booster
    Plagron PK 13-14 additive range in 250ml, 500ml, 1L, 5L and 10L sizesPlagron PK 13-14 | Phosphorus & Potassium Flowering Booster
    A 250ml bottle of Plagron Universal pk 13-14 additive fertilizer, featuring a purple label and a white cap, set against a plain white background.Plagron PK 13-14 | Phosphorus & Potassium Flowering Booster
    A 500ml bottle of Plagron Universal pk 13-14 additive fertilizer, featuring a purple label and a white cap, set against a plain white background.Plagron PK 13-14 | Phosphorus & Potassium Flowering Booster
    A 5 litre bottle of Plagron Universal pk 13-14 additive fertilizer, featuring a purple label and a white cap, set against a plain white background.Plagron PK 13-14 | Phosphorus & Potassium Flowering Booster
    A 10 litre bottle of Plagron Universal pk 13-14 additive fertilizer, featuring a purple label and a white cap, set against a plain white background.Plagron PK 13-14 | Phosphorus & Potassium Flowering Booster
    PLAGRON

    Plagron PK 13-14 | Phosphorus & Potassium Flowering Booster

    £5.80
    £5.80
    £23.20 l

    Plagron PK 13-14 Flowering Booster Plagron PK 13-14 is a concentrated mineral fertiliser that adds phosphorus and potassium to a plant’s feeding programme during flowering and...

    SIZE: 250 ML
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