Humboldt Nutrients

Click here to view the Humboldt Nutrients feed charts.

Unlike our competition, we never buy liquidated inventory or old, deeply-discounted, soon-to-be-expired nutrients. We receive new products every few days, so when you buy from GYOstuff, rest assured you’re buying only the freshest nutrients for your plants.

     
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    Myco Madness Soluble 120 lb Myco Maximum Granular 8 oz Myco Maximum Granular 1 lb
    Myco Madness Soluble 120 lbMyco Maximum Granular 8 ozMyco Maximum Granular 1 lb

    A soluble blend of mycorrhizae, beneficial bacteria, Trichoderma and humic acid.

    A granular blend of mycorrhizae, beneficial bacteria, Trichoderma and humic acid.

    A granular blend of mycorrhizae, beneficial bacteria, Trichoderma and humic acid.

    $6,919.95

    $5,999.99

    $29.95

    $49.95

    Myco Maximum Granular 5 lb Myco Maximum Granular 10 lb Myco Maximum Granular 20 lb
    Myco Maximum Granular 5 lbMyco Maximum Granular 10 lbMyco Maximum Granular 20 lb

    A granular blend of mycorrhizae, beneficial bacteria, Trichoderma and humic acid.

    A granular blend of mycorrhizae, beneficial bacteria, Trichoderma and humic acid.

    A granular blend of mycorrhizae, beneficial bacteria, Trichoderma and humic acid.

    $199.95

    $359.95

    $323.99

    $599.95

    $549.99

    ProZyme 16 oz. ProZyme 32 oz. ProZyme 1 gal
    ProZyme 16 oz.ProZyme 32 oz.ProZyme 1 gal

    Enzymatic formula that increases the rate of chemical reactions in the reservoir.

    Enzymatic formula that increases the rate of chemical reactions in the reservoir.

    Enzymatic formula that increases the rate of chemical reactions in the reservoir.

    $23.00

    $40.00

    $140.00

    ProZyme 5 gal. ProZyme 15 gal ProZyme 55 gal
    ProZyme 5 gal.ProZyme 15 galProZyme 55 gal

    Enzymatic formula that increases the rate of chemical reactions in the reservoir.

    Enzymatic formula that increases the rate of chemical reactions in the reservoir.

    Enzymatic formula that increases the rate of chemical reactions in the reservoir.

    $659.95

    $589.99

    $1,849.95

    $1,659.99

    $6,050.00

    $5,379.99

    This item ships freight.

    Royal Flush 16 oz Royal Flush 32 oz Royal Flush 1 gal
    Royal Flush 16 ozRoyal Flush 32 ozRoyal Flush 1 gal

    Salt leeching flushing solution for healthier plants and a better finished product.

    Salt leeching flushing solution for healthier plants and a better finished product.

    Salt leeching flushing solution for healthier plants and a better finished product.

    $8.33

    $14.50

    $32.50

    Royal Flush 2.5 gal Royal Flush 5 gal Sticky 8 oz
    Royal Flush 2.5 galRoyal Flush 5 galSticky 8 oz

    Salt leeching flushing solution for healthier plants and a better finished product.

    Salt leeching flushing solution for healthier plants and a better finished product.

    Increases effectiveness of foliar sprays.

    $72.50

    $135.00

    $11.10

    Sticky 16 oz Sticky 32 oz Sticky 1/2 gal
    Sticky 16 ozSticky 32 ozSticky 1/2 gal

    Increases effectiveness of foliar sprays.

    Increases effectiveness of foliar sprays.

    Increases effectiveness of foliar sprays.

    $18.50

    $30.00

    $51.00

    Structural Integrity 16 oz Structural Integrity 32 oz Structural Integrity Gal
    Structural Integrity 16 ozStructural Integrity 32 ozStructural Integrity Gal

    Silica additive for increased plant strength and hardiness against pests and diseases.

    Silica additive for increased plant strength and hardiness against pests and diseases.

    Silica additive for increased plant strength and hardiness against pests and diseases.

    $13.00

    $24.00

    $85.08

    Structural Integrity 2.5 Gal Verde 16 oz. Verde 32 oz.
    Structural Integrity 2.5 GalVerde 16 oz.Verde 32 oz.

    Silica additive for increased plant strength and hardiness against pests and diseases.

    Massive nitrogen boost, not recommended for recirculating systems.

    Massive nitrogen boost, not recommended for recirculating systems.

    $195.00

    $12.92

    $22.50

    Verde 1 gal Verde 2.5 gal. Verde 5 gal.
    Verde 1 galVerde 2.5 gal.Verde 5 gal.

    Massive nitrogen boost, not recommended for recirculating systems.

    Massive nitrogen boost, not recommended for recirculating systems.

    Massive nitrogen boost, not recommended for recirculating systems.

    $80.00

    $190.00

    $359.95

    $323.99

    Verde 15 gal Verde 55 gal White Widow 1 oz.
    Verde 15 galVerde 55 galWhite Widow 1 oz.

    Massive nitrogen boost, not recommended for recirculating systems.

    Massive nitrogen boost, not recommended for recirculating systems.

    Mycorrhizal inoculant, increases root surface area and nutrient uptake by the plant.

    $999.95

    $889.99

    $3,119.95

    $2,799.99

    This item ships freight.

    $18.11

    White Widow 2 oz White Widow 4 oz. White Widow 8 oz.
    White Widow 2 ozWhite Widow 4 oz.White Widow 8 oz.

    Mycorrhizal inoculant, increases root surface area and nutrient uptake by the plant.

    Mycorrhizal inoculant, increases root surface area and nutrient uptake by the plant.

    Mycorrhizal inoculant, increases root surface area and nutrient uptake by the plant.

    $31.50

    $54.60

    $97.50

    White Widow 1 lb
    White Widow 1 lb

    Mycorrhizal inoculant, increases root surface area and nutrient uptake by the plant.

    $185.26

    121 - 157 of 157 items