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.

     
    121 - 153 of 153 items
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    Myco Maximum Granular 10 lb Myco Maximum Granular 20 lb ProZyme 16 oz.
    Myco Maximum Granular 10 lbMyco Maximum Granular 20 lbProZyme 16 oz.

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

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

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

    $359.95

    $323.99

    $599.95

    $549.99

    $23.00

    ProZyme 32 oz. ProZyme 1 gal ProZyme 5 gal.
    ProZyme 32 oz.ProZyme 1 galProZyme 5 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.

    $40.00

    $140.00

    $659.95

    $589.99

    ProZyme 15 gal ProZyme 55 gal Royal Flush 16 oz
    ProZyme 15 galProZyme 55 galRoyal Flush 16 oz

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

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

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

    $1,849.95

    $1,659.99

    $6,050.00

    $5,379.99

    This item ships freight.

    $8.33

    Royal Flush 32 oz Royal Flush 1 gal Royal Flush 2.5 gal
    Royal Flush 32 ozRoyal Flush 1 galRoyal Flush 2.5 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.

    $14.50

    $32.50

    $72.50

    Royal Flush 5 gal Sticky 8 oz Sticky 16 oz
    Royal Flush 5 galSticky 8 ozSticky 16 oz

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

    Increases effectiveness of foliar sprays.

    Increases effectiveness of foliar sprays.

    $135.00

    $11.10

    $18.50

    Sticky 32 oz Sticky 1/2 gal Structural Integrity 16 oz
    Sticky 32 ozSticky 1/2 galStructural Integrity 16 oz

    Increases effectiveness of foliar sprays.

    Increases effectiveness of foliar sprays.

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

    $30.00

    $51.00

    $13.00

    Structural Integrity 32 oz Structural Integrity Gal Structural Integrity 2.5 Gal
    Structural Integrity 32 ozStructural Integrity GalStructural Integrity 2.5 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.

    $24.00

    $85.08

    $195.00

    Verde 16 oz. Verde 32 oz. Verde 1 gal
    Verde 16 oz.Verde 32 oz.Verde 1 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.

    $12.92

    $22.50

    $80.00

    Verde 2.5 gal. Verde 5 gal. Verde 15 gal
    Verde 2.5 gal.Verde 5 gal.Verde 15 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.

    $190.00

    $359.95

    $323.99

    $999.95

    $889.99

    Verde 55 gal White Widow 1 oz. White Widow 2 oz
    Verde 55 galWhite Widow 1 oz.White Widow 2 oz

    Massive nitrogen boost, not recommended for recirculating systems.

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

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

    $3,119.95

    $2,799.99

    This item ships freight.

    $18.11

    $31.50

    White Widow 4 oz. White Widow 8 oz. White Widow 1 lb
    White Widow 4 oz.White Widow 8 oz.White Widow 1 lb

    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.

    $54.60

    $97.50

    $185.26

    121 - 153 of 153 items