Humboldt Nutrients

Give your plants what they need, when they need it! Humboldt Nutrients is committed to providing the highest quality plant nutrients designed to provide the highest yields for the hydroponic or organic grower.

Showing all 12 results

  • DeuceDeuce 1


    A 100% Natural Potassium Supplement. Derived from sulfate of potash and Ascophyllum nodosum seaweed, Humboldt Nutrients DeuceDeuce (0-0-22) aids plants ...

  • FlavorFul Fulvic Acid 1

    FlavorFul Fulvic Acid

    Contains 8% refined HUMIC ACID..! Humboldt Nutrients FlavorFul has a rich, dark color, indicating the high concentration of this 100% ...

  • Humboldt Bloom Natural 1

    Humboldt Bloom Natural

    A 100% Natural Base Nutrient. Humboldt Nutrients Bloom Natural (0-10-0) blends soft rock phosphate and kelp to give your plants ...

  • Humboldt Grow Natural 1

    Humboldt Grow Natural

    A 100% Natural Base Nutrient. Humboldt Nutrients Grow Natural (3-1-3) combines ocean fish, seaweed extract and pure cane molasses to ...

  • Humboldt Honey ES 1

    Humboldt Honey ES

    A 100% Natural Sweetener. Humboldt Honey ES (extra strong) increases Brix levels by providing sugars to beneficial bacteria, fungi and ...

  • Humboldt Roots 1

    Humboldt Roots

    Specifically designed to expand the root zone resulting in larger yields through…

    $72.80 $52.50
  • Hum-Bolt 1


    Contains 8% HUMIC ACID..! Derived from leonardite, Humboldt Nutrients Hum-Bolt improves plant production by promoting high ion exchange capabilities, stimulating ...

  • Big Up Powder 1

    Big Up Powder

    A¬†premium bloom booster designed for the last few weeks of a flowering or …

    $31.50 $22.50
  • ProZyme Enzymatic Concentrate 1

    ProZyme Enzymatic Concentrate

    A 100% Natural, Biological Inoculant. Humboldt Nutrients ProZyme is a concentrated enzymatic treatment (contains over 80 different beneficial enzymes) that ...

  • Mayan MicroZyme 1

    Mayan MicroZyme

    A 100% Natural Bacterial-Enzymatic Concentrate. Chock-full of microorganisms, Humboldt Nutrients Mayan MicroZyme can increase fertility while providing vital nutrients to ...

  • Myco Madness 1

    Myco Madness

    Well suited to a variety of climates, soils and plants, this soluble powder can …

  • White Widow 1

    White Widow

    Helps provide plant roots with greater access to water and nutrients in the soil.

    $57.50 $41.95