Humboldt Organic (Natural) 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.

1 - 46 of 46 items
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DeuceDeuce 32 oz. DeuceDeuce 1 gal. DeuceDeuce 2.5 gal.
DeuceDeuce 32 oz.DeuceDeuce 1 gal.DeuceDeuce 2.5 gal.

Improves root health and mass resulting in increased blooms and a hardier plant.

Improves root health and mass resulting in increased blooms and a hardier plant.

Improves root health and mass resulting in increased blooms and a hardier plant.

$20.95

$19.49

$73.53

$65.99

$172.95

$154.99

DeuceDeuce 5 gal. Equilibrium Natural, 32 oz Equilibrium Natural, 1 gal
DeuceDeuce 5 gal.Equilibrium Natural, 32 ozEquilibrium Natural, 1 gal

Improves root health and mass resulting in increased blooms and a hardier plant.

Calcium and magnesium supplement for soil and hydroponics.

Calcium and magnesium supplement for soil and hydroponics.

$329.83

$299.99

$22.42

$20.99

$77.95

$72.49

Equilibrium Natural, 2.5 gal Hum-bolt humic 32 oz. Hum-bolt Humic 1 gal.
Equilibrium Natural, 2.5 galHum-bolt Humic 32 oz.Hum-bolt Humic 1 gal.

Calcium and magnesium supplement for soil and hydroponics.

Humic acid supplementation for increased nutrient uptake, resulting in better overall plant growth.

Humic acid supplementation for increased nutrient uptake, resulting in better overall plant growth.

$185.24

$165.99

$18.44

$17.29

$61.45

$56.99

Hum-bolt Humic 2.5 gal. Hum-bolt humic 5 gal. Hum-bolt Humic 15 gal
Hum-bolt Humic 2.5 gal.Hum-bolt Humic 5 gal.Hum-bolt Humic 15 gal

Humic acid supplementation for increased nutrient uptake, resulting in better overall plant growth.

Humic acid supplementation for increased nutrient uptake, resulting in better overall plant growth.

Humic acid supplementation for increased nutrient uptake, resulting in better overall plant growth.

$141.34

$128.99

$245.79

$223.99

$663.65

$599.99

FlavorFul 32 oz. FlavorFul 1 gal. FlavorFul 2.5 gal.
FlavorFul 32 oz.FlavorFul 1 gal.FlavorFul 2.5 gal.

Humic acid supplement, increases nutrient uptake resulting in better overall growth.

Humic acid supplement, increases nutrient uptake resulting in better overall growth.

Humic acid supplement, increases nutrient uptake resulting in better overall growth.

$18.44

$17.49

$61.45

$57.99

$141.34

$129.99

FlavorFul 5 gal. FlavorFul 15 gal. Mayan Microzyme 8 oz.
FlavorFul 5 gal.FlavorFul 15 gal.Mayan Microzyme 8 oz.

Humic acid supplement, increases nutrient uptake resulting in better overall growth.

Humic acid supplement, increases nutrient uptake resulting in better overall growth.

Beneficial microbes for improved root zone and nitrogen uptake.

$245.79

$223.99

$631.80

$569.99

$31.62

$28.99

Mayan Microzyme 16 oz. Mayan Microzyme 32 oz. Mayan Microzyme 1 gal.
Mayan Microzyme 16 oz.Mayan Microzyme 32 oz.Mayan Microzyme 1 gal.

Beneficial microbes for improved root zone and nitrogen uptake.

Beneficial microbes for improved root zone and nitrogen uptake.

Beneficial microbes for improved root zone and nitrogen uptake.

$57.20

$52.99

$95.34

$87.99

$345.80

$317.99

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.

$42.02

$38.99

$147.06

$131.99

$693.26

$619.77

ProZyme 15 gal ProZyme 55 gal Myco Madness Soluble 2 oz
ProZyme 15 galProZyme 55 galMyco Madness Soluble 2 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.

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

$2,048.28

$1,839.99

$6,110.50

$5,439.99

This item ships freight.

$15.72

$13.99

Myco Madness Soluble 4 oz Myco Madness Soluble 8 oz Myco Madness Soluble 1 lb
Myco Madness Soluble 4 ozMyco Madness Soluble 8 ozMyco Madness Soluble 1 lb

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

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

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

$27.31

$24.99

$52.52

$48.99

$94.54

$84.99

Myco Madness Soluble 5 lb Humboldt Roots, 50 ml Humboldt Roots, 125 ml
Myco Madness Soluble 5 lbHumboldt Roots, 50 mlHumboldt Roots, 125 ml

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

Highly concentrated organic root stimulant.

Highly concentrated organic root stimulant.

$420.16

$372.99

$23.11

$21.49

$44.12

$40.99

Humboldt Roots, 250 ml Humboldt Roots, 500 ml Humboldt Roots, 1/2 gal
Humboldt Roots, 250 mlHumboldt Roots, 500 mlHumboldt Roots, 1/2 gal

Highly concentrated organic root stimulant.

Highly concentrated organic root stimulant.

Highly concentrated organic root stimulant.

$73.53

$65.99

$120.80

$107.99

$404.45

$359.99

Humboldt Roots, 1 gal White Widow 1 oz. White Widow 2 oz
Humboldt Roots, 1 galWhite Widow 1 oz.White Widow 2 oz

Highly concentrated organic root stimulant.

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

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

$735.28

$659.25

$18.84

$17.49

$32.76

$30.49

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.

$57.48

$53.49

$101.40

$90.99

$192.68

$169.99

Honey Organic ES 32 oz. Honey Organic ES 1 gal. Honey Organic ES 2.5 gal.
Honey Organic ES 32 oz.Honey Organic ES 1 gal.Honey Organic ES 2.5 gal.

Organic source of sugar and carbs for soil and coco gardens. Improves flavor and aroma of plants.

Organic source of sugar and carbs for soil and coco gardens. Improves flavor and aroma of plants.

Organic source of sugar and carbs for soil and coco gardens. Improves flavor and aroma of plants.

$24.58

$22.89

$77.43

$69.99

$176.95

$158.99

Honey Organic ES 5 gal.
Honey Organic ES 5 gal.

Organic source of sugar and carbs for soil and coco gardens. Improves flavor and aroma of plants.

$317.08

$283.99

1 - 46 of 46 items