Since 1996, HESI have produced plant aids and soil additives that are mixed, filled and packed in Kerkrade, the Netherlands.

In-depth research into the secrets of plant metabolism has led to HESI successfully developing an optimally balanced composition for each phase of the plant life cycle. The result is a range of fertilisers for universal use per specific growth phase, instead of a designated fertiliser for every single plant species.

10 products

    10 products
    Hesi Powerzyme 1L
    Hesi pH Down Grow - GROW TROPICALS
    Hesi pH Down Grow
    Hesi pH Up Grow - GROW TROPICALS
    Hesi pH Up Grow

    Quality at our roots

    Explore our carefully designed peat-free potting mixes designed to help your plants thrive at home.
    Shop Substrates Now