Additives

Additives are supplemental products mixed into water alongside base mineral fertilizers to enhance plant health, target specific growth stages, or improve root-zone conditions.

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3 products

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Filter and sort

3 products

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Clear all

3 products

  • Sturdy Stalk

    From $26.15 USD
    From $26.15 USD
    Sturdy Stalk

  • Hydra Clear

    From $196.20 USD
    From $196.20 USD
    Hydra Clear

  • Cal-Mag

    From $15.38 USD
    From $15.38 USD
    Cal-Mag