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Home » Humboldt Nutrients
  • icon Grow Lights (291)
    • Systems/ Kits (31)
    • LEDs (52)
    • Fluorescents (71)
    • Reflectors (6)
    • Lamps/ Bulbs (40)
    • Ballasts (5)
    • Parts/ Accessories (86)
  • icon Fertilizers & Nutrients (1511)
  • icon Hydroponics (580)
    • Hydro Systems (56)
    • Supplies/ Parts (76)
    • Meters & Solutions (45)
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    • Pots/ Containers (151)
    • Grow Tents (44)
  • icon Potting Soil & Mixes (204)
  • icon Climate Control (348)
    • Controllers (50)
    • Ventilation (159)
    • Air Purification (104)
    • CO2 Systems (35)
  • icon Seed Starting (95)
  • icon Garden Supplies (215)
  • icon Pest Control (161)
  • icon Harvest & Storage (26)
  • icon Books & Videos (0)
  • Humboldt Honey Organic ES, 1 qt

    Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses, yucca, kelp and ocean fish. This carb source ...

    $15.86

  • Humboldt Honey Organic ES, 2.5 gal

    Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses, yucca, kelp and ocean fish. This carb source ...

    $122.96

  • Humboldt Honey Organic ES, 5 gal

    Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses, yucca, kelp and ocean fish. This carb source ...

    $220.34

  • Humboldt Nutrients Big Up Powder, 1 lb

    Size: 1 lb

    $33.72

  • Humboldt Nutrients Big Up Powder, 10 lbs

    Big Up Powder 0-33-23 A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists ...

    $288.76

  • Humboldt Nutrients Big Up Powder, 5 lbs

    Size: 5 lbs

    $135.55

  • Humboldt Nutrients Bloom Natural, 2.5 gal

    Bloom Natural 0-10-0 If you were looking for a natural bloom formula with some major punch to it, you have found ...

    $149.95

  • Humboldt Nutrients Calyx Magnum, 1 qt

    Size: 1 qt

    $12.69

  • Humboldt Nutrients Ginormous, 1 gal

    GIANT flowers and ENORMOUS fruits are what we all want to harvest consistently throughout our lives. Humboldt Nutrients is here ...

    $67.49

  • Humboldt Nutrients Ginormous, 1 qt

    Size: 1 qt

    $20.19

  • Humboldt Nutrients Ginormous, 2.5 gal

    GIANT flowers and ENORMOUS fruits are what we all want to harvest consistently throughout our lives. Humboldt Nutrients is here ...

    $148.24

  • Humboldt Nutrients Ginormous, 5 gal

    GIANT flowers and ENORMOUS fruits are what we all want to harvest consistently throughout our lives. Humboldt Nutrients is here ...

    $276.86

  • Humboldt Nutrients Grow Natural, 1 qt

    Grow Natural 3-1-3 Humboldt Nutrients Grow Natural is an ultra-concentrated natural grow formula designed to give your plants the nutrient-rich foundations ...

    $17.88

  • Humboldt Nutrients Master-B, 5 gal

    NPK 1-5-6 Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants made with non-toxic, high quality ...

    $173.62

  • Humboldt Nutrients Mayan Microzyme, 1 qt

    NOT FOR SALE IN OREGON OR HAWAII Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically ...

    $61.14

  • Humboldt Nutrients Mayan Microzyme, 8 oz

    NOT FOR SALE IN OREGON OR HAWAII Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically ...

    $20.17

  • Humboldt Nutrients Myco Madness, 2 oz

    Not for sale in Hawaii Myco Madness is a soluble powder which contains a biologically active package: 9 mycorrhizal species, 15 ...

    $10.36

  • Humboldt Nutrients Myco Madness, 4 oz

    Not for sale in Hawaii Myco Madness is a soluble powder which contains a biologically active package: 9 mycorrhizal species, 15 ...

    $17.59

  • Humboldt Nutrients Myco Madness, 8 oz

    Not for sale in Hawaii Myco Madness is a soluble powder which contains a biologically active package: 9 mycorrhizal species, 15 ...

    $33.45

  • Humboldt Nutrients Oneness, 2.5 gal

    Oneness 5-9-4 Through extensive research and development, the Humboldt Nutrients team of agronomists and chemists have created the first naturally chelated ...

    $125.30

  • Humboldt Nutrients ProZyme, 1 qt

    Enzymatic Concentrate ProZyme Enzymes are biological catalysts, derived from living organisms. Catalysts increase the speed of naturally occurring chemical reactions. Prozyme, is a ...

    $27.11

  • Humboldt Nutrients Sticky, 1 qt

    Humboldt Sticky is a premium sticking and wetting agent which has been extensively tested in Northern California with phenomenal results, ...

    Contact us
  • Humboldt Nutrients Verde, 1 gal

    Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as ...

    $59.26

  • Humboldt Nutrients Verde, 1 qt

    Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as ...

    $16.86

  • Humboldt Nutrients Verde, 15 gal

    Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as ...

    $688.12

  • Humboldt Nutrients Verde, 2.5 gal

    Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as ...

    $141.68

  • Humboldt Nutrients Verde, 5 gal

    Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as ...

    $267.80

  • Humboldt Nutrients Verde, 55 gal

    Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as ...

    $2,335.46

Page 1 of 212»

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