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Hydrodynamics International (HDI)

Since 1997 HDI has been formulating premium plant nutrients, additives and CLONEX — the ultimate rooting compound — to improve the quality of your favorite vegetables, herbs and flowers.

  • Root Riot Cubes/ Plugs

    Root Riot Plugs

    Made from organic composted materials — NO dust and 100% problem-free!

    $17.95 $15.95
  • Root Riot Tray w/ Plugs

    Root Riot

    Suitable for both soil or hydroponics, Root Riot outperforms most brands.

    $29.95 $27.95
  • Clonex Mist Root Stimulator

    Clonex Mist

    Contains ALL the needed vitamins and minerals for faster root development.

    $10.95 $8.95
  • Europonic Fossil Fuel

    Fossil Fuel

    Promotes rapid plant growth and may help in the uptake of micronutrients.

    $21.50 $18.50
  • Ionic Bloom

    Ionic Bloom

    Specifically formulated for the reproductive and flowering stages of plant growth.

    $19.95 $17.95
  • Ionic Boost

    Ionic Boost

    Apply during the final weeks before harvest of most fruiting/flowering crops.

    $19.95 $17.95
  • Ionic Grow

    Ionic Grow

    Specifically formulated for the green vegetative stage of growing plants.

    $19.95 $17.95
  • Mother Plant Nutrients

    Mother Plant

    Precise N-P-K ratios are used to meet the needs of stock or “mother” plants.

    $17.95 $10.00
  • Nitrozime Marine Algae Extract


    Try some today! Your plants will thank you in ways you'll be eager to show off.

    $34.95 $26.95
  • Clonex Clone Solution

    Clonex Solution

    Encourages rapid root development while helping to minimize plant stress.

    $24.95 $22.95
  • Clonex Gel Rooting Compound

    Clonex Gel

    Seals the cut tissue fast and supplies the hormones needed to promote fast growth.

    $23.95 $21.00
  • Clonex Rooting Gel Packets

    Clonex Packets

    Each 15mL single use Clonex packet will treat approximately 50 cuttings.

    $7.50 $5.95