PK (Phosphorus / Potassium)

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  • £69.99£240.00

    Rocks Resinator is a Booster, Phosphorous and Potassium and an enzyme combo all in one bottle. That’s four different beneficial plant growth-promoting essentials in one bottle which saves you money and time!


  • £4.99£47.99
  • £13.99£45.99

    HESI PK13/14 is a potassium and phosphorus booster designed to encorage flower and fruit formation in plants.
    During the flowering period, plants are at the optimum of their lifecycle and as such have a greater need for certain nutrients
    Phosphorus is necessary for early growth and blooming, enhancing maturity and fruit growth. Potassium promotes the development of starches, carbohydrates, and sugars and increases fruit production.

    Hesi PK13/14 is highly recommended for anyone using the Hesi Hydro or Hesi Coco range of nutrients.

  • £6.99£34.99

    A PK 13/14 Booster for fruiting crops. Using this product will ensure your fruit crops benefit from faster growth as well as larger and more dense crops. Also contains some elements of Nitrogen to maintain a balanced nutrient profile.

    Bill Sez:
    This product is NOT 100% organic, if you are following an organic regime it is advisory not to use this product.

    Ben Sez:
    Store in a cool dry place away from children. Always wear gloves and
    eye protection when using this product. In case of contact with skin and eyes rinse with clean running water.

  • £11.99£30.99


    Hesi Phosphorus Plus


    Bloombooster for Plants


    Plants in the flowering phase
    need increasing amounts of potassium and phosphorus. 

    Phosphorus- Plus adds the right dosage at the correct time.

    Plus is used in combination with the Complex in the second
    half of the flowering phase. During flowering, the plant develops an increased
    need for these 2 properties. Using BloomBooster we give plants the right
    elements at the right moment: phosphorus for larger flowers and potassium
    faster development.

Hesi soil nutrition has been carefully crafted to
    the correct ratios in the soil environment and ensures that the plants are well
    cared for in an optimal manner. Thanks to the use of the finest quality
    ingredients, the plants take up all substances that are offered to them,
    meaning no residues are left behind.

With Phosphorus Plus the growth of
    the flowers is more powerful!