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Products > Nutrient & Supplements > Humboldt Nutrients Supplements

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Description Availability Price

Structural Integrity 16 oz

This fertilizer is intended as a supplement to a regular fertilization program and will not, by itself, provide all the nutrients normally required by plants. Product most effective if used in same season. Use only as directed. Keep out of direct ... More Details

Item Number: 136409

Structural Integrity 16 oz
Usually ships in 3 to 5 days.
More Info
$9.69

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Structural Integrity Quart

This fertilizer is intended as a supplement to a regular fertilization program and will not, by itself, provide all the nutrients normally required by plants. Product most effective if used in same season. Use only as directed. Keep out of direct ... More Details

Item Number: 136297

Structural Integrity Quart
Usually ships in 3 to 5 days.
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$16.40

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Structural Integrity Gallon

This fertilizer is intended as a supplement to a regular fertilization program and will not, by itself, provide all the nutrients normally required by plants. Product most effective if used in same season. Use only as directed. Keep out of direct ... More Details

Item Number: 136397

Structural Integrity Gallon
Usually ships in 24 hours
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$58.12

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Structural Integrity 2.5 gal

This fertilizer is intended as a supplement to a regular fertilization program and will not, by itself, provide all the nutrients normally required by plants. Product most effective if used in same season. Use only as directed. Keep out of direct ... More Details

Item Number: 136408

Structural Integrity 2.5 gal
Usually ships in 5 to 7 days
More Info
$127.18

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Equilibrium Natural 16 oz.

Plants and gardens must have accessible calcium and magnesium to successfully grow, fruit and flower. In thorough tests conducted by the Humboldt Nutrients team throughout the hills and valleys of Northern California this specific solution of Ca and Mg do... More Details

Item Number: 135300

Equilibrium Natural 16 oz.
Usually ships in 3 to 5 days.
More Info
$9.23

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Equilibrium Natural Quart

Plants and gardens must have accessible calcium and magnesium to successfully grow, fruit and flower. In thorough tests conducted by the Humboldt Nutrients team throughout the hills and valleys of Northern California this specific solution of Ca and Mg do... More Details

Item Number: 135299

Equilibrium Natural Quart
Usually ships in 3 to 5 days.
More Info
$14.73

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Equilibrium Natural Gallon

Plants and gardens must have accessible calcium and magnesium to successfully grow, fruit and flower. In thorough tests conducted by the Humboldt Nutrients team throughout the hills and valleys of Northern California this specific solution of Ca and Mg do... More Details

Item Number: 135298

Equilibrium Natural Gallon
Usually ships in 3 to 5 days.
More Info
$51.24

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Equilibrium Natural 2.5 Gallon

Plants and gardens must have accessible calcium and magnesium to successfully grow, fruit and flower. In thorough tests conducted by the Humboldt Nutrients team throughout the hills and valleys of Northern California this specific solution of Ca and Mg do... More Details

Item Number: 135297

Equilibrium Natural 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$116.16

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Equilibrium Natural 5 Gallons

Plants and gardens must have accessible calcium and magnesium to successfully grow, fruit and flower. In thorough tests conducted by the Humboldt Nutrients team throughout the hills and valleys of Northern California this specific solution of Ca and Mg do... More Details

Item Number: 135296

Equilibrium Natural 5 Gallons
Usually ships in 5 to 7 days
More Info
$210.21

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Royal Flush 16 oz.

A high quality crop needs a clean and effective flush to reach its full potential. By flushing your crops, you remove heavy elements and salts from the plant allowing for more aromatic and flavorful fruits and flowers. Humboldt Nutrients Royal Flush su... More Details

Item Number: 135295

Royal Flush 16 oz.
Usually ships in 3 to 5 days.
More Info
$6.20

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Royal Flush Quart

A high quality crop needs a clean and effective flush to reach its full potential. By flushing your crops, you remove heavy elements and salts from the plant allowing for more aromatic and flavorful fruits and flowers. Humboldt Nutrients Royal Flush su... More Details

Item Number: 135294

Royal Flush Quart
Usually ships in 3 to 5 days.
More Info
$9.91

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Royal Flush Gallon

A high quality crop needs a clean and effective flush to reach its full potential. By flushing your crops, you remove heavy elements and salts from the plant allowing for more aromatic and flavorful fruits and flowers. Humboldt Nutrients Royal Flush su... More Details

Item Number: 135293

Royal Flush Gallon
Usually ships in 3 to 5 days.
More Info
$22.21

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Royal Flush 2.5 Gallon

A high quality crop needs a clean and effective flush to reach its full potential. By flushing your crops, you remove heavy elements and salts from the plant allowing for more aromatic and flavorful fruits and flowers. Humboldt Nutrients Royal Flush su... More Details

Item Number: 135292

Royal Flush 2.5 Gallon
Usually ships in 24 hours
More Info
$49.54

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Royal Flush 5 Gallon

A high quality crop needs a clean and effective flush to reach its full potential. By flushing your crops, you remove heavy elements and salts from the plant allowing for more aromatic and flavorful fruits and flowers. Humboldt Nutrients Royal Flush su... More Details

Item Number: 135291

Royal Flush 5 Gallon
Usually ships in 3 to 5 days.
More Info
$83.85

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White Widow Mycorrhizal Powder 1 Ounce

Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble Mycorrhizal, White Widow. White Widow is a Mycorrhizal powder containing an extremely high and d... More Details

Item Number: 135290

White Widow Mycorrhizal Powder 1 Ounce
Usually ships in 3 to 5 days.
More Info
$12.39

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White Widow Mycorrhizal Powder 2 Ounce

Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble Mycorrhizal, White Widow. White Widow is a Mycorrhizal powder containing an extremely high and d... More Details

Item Number: 135289

White Widow Mycorrhizal Powder 2 Ounce
Usually ships in 3 to 5 days.
More Info
$21.53

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White Widow Mycorrhizal Powder 4 Ounce

Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble Mycorrhizal, White Widow. White Widow is a Mycorrhizal powder containing an extremely high and d... More Details

Item Number: 135288

White Widow Mycorrhizal Powder 4 Ounce
Usually ships in 3 to 5 days.
More Info
$37.75

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White Widow Mycorrhizal Powder 8 Ounce

Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble Mycorrhizal, White Widow. White Widow is a Mycorrhizal powder containing an extremely high and d... More Details

Item Number: 135287

White Widow Mycorrhizal Powder 8 Ounce
Usually ships in 24 hours
More Info
$66.62

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White Widow Mycorrhizal Powder 1 Pound

Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble Mycorrhizal, White Widow. White Widow is a Mycorrhizal powder containing an extremely high and d... More Details

Item Number: 135286

White Widow Mycorrhizal Powder 1 Pound
Usually ships in 3 to 5 days.
More Info
$120.82

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Humboldt Honey ES - Carbohydrates - 16 oz.

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 134877

Humboldt Honey ES - Carbohydrates - 16 oz.
Usually ships in 24 hours
More Info
$9.99

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Humboldt Honey ES - Carbohydrates - Quart

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 134482

Humboldt Honey ES - Carbohydrates - Quart
Usually ships in 3 to 5 days.
More Info
$15.99

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Humboldt Honey ES - Carbohydrates - Gallon

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 134483

Humboldt Honey ES - Carbohydrates - Gallon
Usually ships in 3 to 5 days.
More Info
$50.37

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Humboldt Honey ES - Carbohydrates - 2.5 Gallon

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 134484

Humboldt Honey ES - Carbohydrates - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$109.88

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Humboldt Honey ES - Carbohydrates - 5 Gallon

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 134485

Humboldt Honey ES - Carbohydrates - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$187.49

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Humboldt Honey ES - Carbohydrates - 15 Gallon

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 136256

Humboldt Honey ES - Carbohydrates - 15 Gallon
Out of Stock
More Info
$526.86

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Humboldt Honey ES - Carbohydrates - 55 Gallon

Just as humans host beneficial bacteria in their digestive systems, plants must host microbial life in their root zones for proper digestion. This powerful additive increases Brix levels by providing sugars to the micro-organisms which live in your soil. ... More Details

Item Number: 136255

Humboldt Honey ES - Carbohydrates - 55 Gallon
Out of Stock
More Info
$1,708.07

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Humboldt Honey Hydro Carbs - Carbohydrates - 16 oz.

Humboldt Honey Hydro Carbs is an excellent source of carbohydrates for all plants. It promotes and facilitates the growth of beneficial bacteria and fungi in your soil or soil-less media, and dramatically enhances the quality of any plant's fruit. ... More Details

Item Number: 134878

Humboldt Honey Hydro Carbs - Carbohydrates - 16 oz.
Usually ships in 3 to 5 days.
More Info
$5.52

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Humboldt Honey Hydro Carbs - Carbohydrates - Quart

Humboldt Honey Hydro Carbs is an excellent source of carbohydrates for all plants. It promotes and facilitates the growth of beneficial bacteria and fungi in your soil or soil-less media, and dramatically enhances the quality of any plant's fruit. ... More Details

Item Number: 134486

Humboldt Honey Hydro Carbs - Carbohydrates - Quart
Usually ships in 3 to 5 days.
More Info
$8.80

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Humboldt Honey Hydro Carbs - Carbohydrates - Gallon

Humboldt Honey Hydro Carbs is an excellent source of carbohydrates for all plants. It promotes and facilitates the growth of beneficial bacteria and fungi in your soil or soil-less media, and dramatically enhances the quality of any plant's fruit. ... More Details

Item Number: 134487

Humboldt Honey Hydro Carbs - Carbohydrates - Gallon
Usually ships in 3 to 5 days.
More Info
$29.57

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Humboldt Honey Hydro Carbs - Carbohydrates - 2.5 Gallon

Humboldt Honey Hydro Carbs is an excellent source of carbohydrates for all plants. It promotes and facilitates the growth of beneficial bacteria and fungi in your soil or soil-less media, and dramatically enhances the quality of any plant's fruit. ... More Details

Item Number: 134488

Humboldt Honey Hydro Carbs - Carbohydrates - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$63.95

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Humboldt Honey Hydro Carbs - Carbohydrates - 5 Gallon

Humboldt Honey Hydro Carbs is an excellent source of carbohydrates for all plants. It promotes and facilitates the growth of beneficial bacteria and fungi in your soil or soil-less media, and dramatically enhances the quality of any plant's fruit. ... More Details

Item Number: 134489

Humboldt Honey Hydro Carbs - Carbohydrates - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$101.74

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Verde Growth Catalyst - Organic Additive - 16 oz.

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 134876

Verde Growth Catalyst - Organic Additive - 16 oz.
Usually ships in 3 to 5 days.
More Info
$9.63

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Verde Growth Catalyst - Organic Additive - Quart

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 134494

Verde Growth Catalyst - Organic Additive - Quart
Usually ships in 3 to 5 days.
More Info
$15.38

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Verde Growth Catalyst - Organic Additive - Gallon

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 134495

Verde Growth Catalyst - Organic Additive - Gallon
Usually ships in 3 to 5 days.
More Info
$54.66

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Verde Growth Catalyst - Organic Additive - 2.5 Gallon

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 134496

Verde Growth Catalyst - Organic Additive - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$123.91

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Verde Growth Catalyst - Organic Additive - 5 Gallon

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 134497

Verde Growth Catalyst - Organic Additive - 5 Gallon
Usually ships in 5 to 7 days
More Info
$223.60

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Verde Growth Catalyst - Organic Additive - 15 Gallon

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 135864

Verde Growth Catalyst - Organic Additive - 15 Gallon
Out of Stock
More Info
$621.12

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Verde Growth Catalyst - Organic Additive - 55 Gallon

Vibrant greens and vigorous growth are what to expect with Verde. Used as a foliar or as a growth catalyst for all your favorite plants, Verde can initiate rapid growth for superior internal structures and lifelong plant health. It's Spanish for gree... More Details

Item Number: 135863

Verde Growth Catalyst - Organic Additive - 55 Gallon
Out of Stock
More Info
$1,987.58

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FlavorFul Humic Acid Derivative - Organic Additive - 16 Ounce

FlavorFul is a strong solution of 8% refined Humic acid concentrate, a little known and highly useful additive. The majority of refined Humic acid formulas on the market are .01% concentration. The clear appearance of these watered down derivatives... More Details

Item Number: 134663

FlavorFul Humic Acid Derivative - Organic Additive - 16 Ounce
Usually ships in 3 to 5 days.
More Info
$7.52

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FlavorFul Humic Acid Derivative - Organic Additive - Quart

FlavorFul is a strong solution of 8% refined Humic acid concentrate, a little known and highly useful additive. The majority of refined Humic acid formulas on the market are .01% concentration. The clear appearance of these watered down derivatives... More Details

Item Number: 134498

FlavorFul Humic Acid Derivative - Organic Additive - Quart
Usually ships in 3 to 5 days.
More Info
$12.00

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FlavorFul Humic Acid Derivative - Organic Additive - Gallon

FlavorFul is a strong solution of 8% refined Humic acid concentrate, a little known and highly useful additive. The majority of refined Humic acid formulas on the market are .01% concentration. The clear appearance of these watered down derivatives... More Details

Item Number: 134499

FlavorFul Humic Acid Derivative - Organic Additive - Gallon
Usually ships in 24 hours
More Info
$39.98

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FlavorFul Humic Acid Derivative - Organic Additive - 2.5 Gallon

FlavorFul is a strong solution of 8% refined Humic acid concentrate, a little known and highly useful additive. The majority of refined Humic acid formulas on the market are .01% concentration. The clear appearance of these watered down derivatives... More Details

Item Number: 134500

FlavorFul Humic Acid Derivative - Organic Additive - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$91.94

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FlavorFul Humic Acid Derivative - Organic Additive - 5 Gallon

FlavorFul is a strong solution of 8% refined Humic acid concentrate, a little known and highly useful additive. The majority of refined Humic acid formulas on the market are .01% concentration. The clear appearance of these watered down derivatives... More Details

Item Number: 134501

FlavorFul Humic Acid Derivative - Organic Additive - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$145.34

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FlavorFul Humic Acid Derivative - Organic Additive - 15 Gallon

FlavorFul is a strong solution of 8% refined Humic acid concentrate, a little known and highly useful additive. The majority of refined Humic acid formulas on the market are .01% concentration. The clear appearance of these watered down derivatives... More Details

Item Number: 134664

FlavorFul Humic Acid Derivative - Organic Additive - 15 Gallon
Out of Stock
More Info
$392.42

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Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 16 Ounce

Eons ago the Earth was covered in a humate layer: a rich soil layer containing beneficial micro-organisms, vitamins and minerals. Over time, soil naturally develops humic acida long carbon molecule which plays many roles in microbiology. Humic acid transf... More Details

Item Number: 134668

Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 16 Ounce
Usually ships in 24 hours
More Info
$7.52

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Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - Quart

Eons ago the Earth was covered in a humate layer: a rich soil layer containing beneficial micro-organisms, vitamins and minerals. Over time, soil naturally develops humic acida long carbon molecule which plays many roles in microbiology. Humic acid transf... More Details

Item Number: 134502

Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - Quart
Usually ships in 3 to 5 days.
More Info
$12.00

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Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - Gallon

Eons ago the Earth was covered in a humate layer: a rich soil layer containing beneficial micro-organisms, vitamins and minerals. Over time, soil naturally develops humic acida long carbon molecule which plays many roles in microbiology. Humic acid transf... More Details

Item Number: 134503

Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - Gallon
Usually ships in 3 to 5 days.
More Info
$39.98

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Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 2.5 Gallon

Eons ago the Earth was covered in a humate layer: a rich soil layer containing beneficial micro-organisms, vitamins and minerals. Over time, soil naturally develops humic acida long carbon molecule which plays many roles in microbiology. Humic acid transf... More Details

Item Number: 134504

Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$91.94

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Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 5 Gallon

Eons ago the Earth was covered in a humate layer: a rich soil layer containing beneficial micro-organisms, vitamins and minerals. Over time, soil naturally develops humic acida long carbon molecule which plays many roles in microbiology. Humic acid transf... More Details

Item Number: 134505

Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$145.34

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Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 15 Gallon

Eons ago the Earth was covered in a humate layer: a rich soil layer containing beneficial micro-organisms, vitamins and minerals. Over time, soil naturally develops humic acida long carbon molecule which plays many roles in microbiology. Humic acid transf... More Details

Item Number: 135873

Hum-Bolt Liquid Humic Acid Concentrate 8% - Organic Additive - 15 Gallon
Out of Stock
More Info
$392.42

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Mayan MicroZyme - Biological Inoculant - 4 Ounce

Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically safe beneficial bacterial complex with multiple species of soil microorganisms that will increase fertility while providing vital nutrients... More Details

Item Number: 134518

Mayan MicroZyme - Biological Inoculant - 4 Ounce
Usually ships in 3 to 5 days.
More Info
$13.66

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Mayan MicroZyme - Biological Inoculant - 8 Ounce

Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically safe beneficial bacterial complex with multiple species of soil microorganisms that will increase fertility while providing vital nutrients... More Details

Item Number: 134519

Mayan MicroZyme - Biological Inoculant - 8 Ounce
Usually ships in 3 to 5 days.
More Info
$21.86

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Mayan MicroZyme - Biological Inoculant - Pint

Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically safe beneficial bacterial complex with multiple species of soil microorganisms that will increase fertility while providing vital nutrients... More Details

Item Number: 134520

Mayan MicroZyme - Biological Inoculant - Pint
Usually ships in 3 to 5 days.
More Info
$37.58

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Mayan MicroZyme - Biological Inoculant - Quart

Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically safe beneficial bacterial complex with multiple species of soil microorganisms that will increase fertility while providing vital nutrients... More Details

Item Number: 134521

Mayan MicroZyme - Biological Inoculant - Quart
Usually ships in 3 to 5 days.
More Info
$65.94

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Mayan MicroZyme - Biological Inoculant - Gallon

Bacterial Complex with Biological Nitrogen Fixation (BNF) Mayan MicroZyme is a 100% organic and ecologically safe beneficial bacterial complex with multiple species of soil microorganisms that will increase fertility while providing vital nutrients... More Details

Item Number: 134522

Mayan MicroZyme - Biological Inoculant - Gallon
Usually ships in 3 to 5 days.
More Info
$228.26

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ProZyme Enzymatic Concentrate - Biological Inoculant - 16 Ounce

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 134661

ProZyme Enzymatic Concentrate - Biological Inoculant -  16 Ounce
Usually ships in 5 to 7 days
More Info
$15.71

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ProZyme Enzymatic Concentrate - Biological Inoculant - Quart

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 134523

ProZyme Enzymatic Concentrate - Biological Inoculant - Quart
Usually ships in 3 to 5 days.
More Info
$27.33

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ProZyme Enzymatic Concentrate - Biological Inoculant - Gallon

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 134524

ProZyme Enzymatic Concentrate - Biological Inoculant - Gallon
Usually ships in 3 to 5 days.
More Info
$95.65

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ProZyme Enzymatic Concentrate - Biological Inoculant - 2.5 Gallon

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 134525

ProZyme Enzymatic Concentrate - Biological Inoculant - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$257.93

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ProZyme Enzymatic Concentrate - Biological Inoculant - 5 Gallon

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 134526

ProZyme Enzymatic Concentrate - Biological Inoculant - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$409.94

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ProZyme Enzymatic Concentrate - Biological Inoculant - 15 Gallon

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 135868

ProZyme Enzymatic Concentrate - Biological Inoculant - 15 Gallon
Out of Stock
More Info
$1,149.07

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ProZyme Enzymatic Concentrate - Biological Inoculant - 55 Gallon

Humboldt ProZyme is specially developed for cleansing and treating all growing mediums. Humboldt ProZyme is compatible with all standard nutrients, rooting compounds, and fertilizing programs. ProZyme is not a fertilizer or nutrient; it is a non-plant foo... More Details

Item Number: 135867

ProZyme Enzymatic Concentrate - Biological Inoculant - 55 Gallon
Out of Stock
More Info
$3,757.76

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Myco Madness Soluble - Biological Inoculant - 2 Ounce

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 134879

Myco Madness Soluble - Biological Inoculant - 2 Ounce
Usually ships in 3 to 5 days.
More Info
$11.16

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Myco Madness Soluble - Biological Inoculant - 4 Ounce

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 134527

Myco Madness Soluble - Biological Inoculant - 4 Ounce
Usually ships in 3 to 5 days.
More Info
$17.76

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Myco Madness Soluble - Biological Inoculant - 8 Ounce

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 134528

Myco Madness Soluble - Biological Inoculant - 8 Ounce
Usually ships in 3 to 5 days.
More Info
$34.16

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Myco Madness Soluble - Biological Inoculant - 1 Pound

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 134529

Myco Madness Soluble - Biological Inoculant - 1 Pound
Usually ships in 3 to 5 days.
More Info
$61.49

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Myco Madness Soluble - Biological Inoculant - 5 Pound

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 134530

Myco Madness Soluble - Biological Inoculant - 5 Pound
Usually ships in 3 to 5 days.
More Info
$248.45

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Myco Madness Soluble - Biological Inoculant - 20 Pound

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 135871

Myco Madness Soluble - Biological Inoculant - 20 Pound
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$1,003.34

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Myco Madness Soluble - Biological Inoculant - 120 Pound

Myco Madness This biologically active soluble powder contains beneficial bacteria, mycorrhizal fungi, and trichoderma. These micro-organisms colonize roots and extend root zones into surrounding media, increasing the surface area of the root system. Humbo... More Details

Item Number: 135872

Myco Madness Soluble - Biological Inoculant - 120 Pound
Out of Stock
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$5,160.06

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Myco Maximum Granular - Biological Inoculant - 8 Ounce

Like its cousin Myco Madness, Myco Maximum is a diverse biological package of beneficial bacteria, mycorrhizal fungi, and stimulants. With Myco Maximum the quality and quantity of yield can amaze you, trouncing your past harvests' flavors and yields in al... More Details

Item Number: 134531

Myco Maximum Granular - Biological Inoculant - 8 Ounce
Usually ships in 3 to 5 days.
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$20.50

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Myco Maximum Granular - Biological Inoculant - 1 Pound

Like its cousin Myco Madness, Myco Maximum is a diverse biological package of beneficial bacteria, mycorrhizal fungi, and stimulants. With Myco Maximum the quality and quantity of yield can amaze you, trouncing your past harvests' flavors and yields in al... More Details

Item Number: 134532

Myco Maximum Granular - Biological Inoculant - 1 Pound
Usually ships in 3 to 5 days.
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$34.16

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Myco Maximum Granular - Biological Inoculant - 5 Pound

Like its cousin Myco Madness, Myco Maximum is a diverse biological package of beneficial bacteria, mycorrhizal fungi, and stimulants. With Myco Maximum the quality and quantity of yield can amaze you, trouncing your past harvests' flavors and yields in al... More Details

Item Number: 134533

Myco Maximum Granular - Biological Inoculant - 5 Pound
Usually ships in 3 to 5 days.
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$130.43

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Myco Maximum Granular - Biological Inoculant - 10 Pound

Like its cousin Myco Madness, Myco Maximum is a diverse biological package of beneficial bacteria, mycorrhizal fungi, and stimulants. With Myco Maximum the quality and quantity of yield can amaze you, trouncing your past harvests' flavors and yields in al... More Details

Item Number: 135870

Myco Maximum Granular - Biological Inoculant - 10 Pound
Out of Stock
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$223.60

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Myco Maximum Granular - Biological Inoculant - 20 Pound

Like its cousin Myco Madness, Myco Maximum is a diverse biological package of beneficial bacteria, mycorrhizal fungi, and stimulants. With Myco Maximum the quality and quantity of yield can amaze you, trouncing your past harvests' flavors and yields in al... More Details

Item Number: 135869

Myco Maximum Granular - Biological Inoculant - 20 Pound
Out of Stock
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$372.67

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Sea Cal Concentrated Growth Catalyst - High Power Additive - 8 Ounce

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 134660

Sea Cal Concentrated Growth Catalyst - High Power Additive - 8 Ounce
Usually ships in 3 to 5 days.
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$8.35

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Sea Cal Concentrated Growth Catalyst - High Power Additive - 16 Ounce

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 134959

Sea Cal Concentrated Growth Catalyst - High Power Additive - 16 Ounce
Usually ships in 3 to 5 days.
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$14.53

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Sea Cal Concentrated Growth Catalyst - High Power Additive - Quart

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 134534

Sea Cal Concentrated Growth Catalyst - High Power Additive - Quart
Usually ships in 3 to 5 days.
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$23.23

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Sea Cal Concentrated Growth Catalyst - High Power Additive - Gallon

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 134535

Sea Cal Concentrated Growth Catalyst - High Power Additive - Gallon
Usually ships in 3 to 5 days.
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$88.82

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Sea Cal Concentrated Growth Catalyst - High Power Additive - 2.5 Gallon

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 134536

Sea Cal Concentrated Growth Catalyst - High Power Additive - 2.5 Gallon
Usually ships in 3 to 5 days.
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$205.44

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Sea Cal Concentrated Growth Catalyst - High Power Additive - 5 Gallon

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 134537

Sea Cal Concentrated Growth Catalyst - High Power Additive - 5 Gallon
Usually ships in 5 to 7 days
More Info
$372.67

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Sea Cal Concentrated Growth Catalyst - High Power Additive - 15 Gallon

Just as humans use calcium to build bones and nervous sytem tissue, plants utilize (Ca) to build stalks, leaves and internal structures which carry out nutrient circulation and absorption. Sea Cal was designed for use on any type of vegetable, flower or h... More Details

Item Number: 135866

Sea Cal Concentrated Growth Catalyst - High Power Additive - 15 Gallon
Out of Stock
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$1,006.21

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Sea Mag Concentrated Growth Enhancer - High Power Additive - 8 Ounce

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 134767

Sea Mag Concentrated Growth Enhancer - High Power Additive - 8 Ounce
Usually ships in 3 to 5 days.
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$5.91

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Sea Mag Concentrated Growth Enhancer - High Power Additive - Pint

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 134768

Sea Mag Concentrated Growth Enhancer - High Power Additive - Pint
Usually ships in 3 to 5 days.
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$10.29

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Sea Mag Concentrated Growth Enhancer - High Power Additive - Quart

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 134538

Sea Mag Concentrated Growth Enhancer - High Power Additive - Quart
Usually ships in 3 to 5 days.
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$16.40

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Sea Mag Concentrated Growth Enhancer - High Power Additive - Gallon

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 134539

Sea Mag Concentrated Growth Enhancer - High Power Additive - Gallon
Usually ships in 3 to 5 days.
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$54.66

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Sea Mag Concentrated Growth Enhancer - High Power Additive - 2.5 Gallon

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 134540

Sea Mag Concentrated Growth Enhancer - High Power Additive - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$123.91

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Sea Mag Concentrated Growth Enhancer - High Power Additive - 5 Gallon

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 134541

Sea Mag Concentrated Growth Enhancer - High Power Additive - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$223.60

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Sea Mag Concentrated Growth Enhancer - High Power Additive - 15 Gallon

Magnesium helps induce cell division, growth and other internal processes in plants. Sea Mag is a magnesium additive formulated to increase plant and flower growth. Sea Mag supplies magnesium, nitrogen, potassium, phosphorous and humic acid, preventing po... More Details

Item Number: 135865

Sea Mag Concentrated Growth Enhancer - High Power Additive - 15 Gallon
Out of Stock
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$621.12

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Big Up Powder Bloom Booster - High Power Additive - 2 Ounce

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134666

Big Up Powder Bloom Booster - High Power Additive - 2 Ounce
Usually ships in 3 to 5 days.
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$7.38

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Big Up Powder Bloom Booster - High Power Additive - 4 Ounce

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134665

Big Up Powder Bloom Booster - High Power Additive - 4 Ounce
Usually ships in 3 to 5 days.
More Info
$12.87

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Big Up Powder Bloom Booster - High Power Additive - 8 Ounce

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134542

Big Up Powder Bloom Booster - High Power Additive - 8 Ounce
Usually ships in 3 to 5 days.
More Info
$20.50

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Big Up Powder Bloom Booster - High Power Additive - 1 Pound

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134543

Big Up Powder Bloom Booster - High Power Additive - 1 Pound
Usually ships in 24 hours
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$34.16

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Big Up Powder Bloom Booster - High Power Additive - 5 Pound

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134544

Big Up Powder Bloom Booster - High Power Additive - 5 Pound
Usually ships in 3 to 5 days.
More Info
$130.43

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Big Up Powder Bloom Booster - High Power Additive - 10 Pound

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134545

Big Up Powder Bloom Booster - High Power Additive - 10 Pound
Out of Stock
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$236.02

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Big Up Powder Bloom Booster - High Power Additive - 20 Pound

A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but... More Details

Item Number: 134667

Big Up Powder Bloom Booster - High Power Additive - 20 Pound
Out of Stock
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$434.78

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Ginormous Bloom Enhancer - High Power Additive - 16 Ounce

Ginormous This super bloom booster is made with macro and micro nutrients, trace elements and sugars. Crops grown with Ginormous have higher Brix levels, larger flowers and stronger aromas. Ginormous is 100% biodegradable and contains no harmful hormo... More Details

Item Number: 134662

Ginormous Bloom Enhancer - High Power Additive - 16 Ounce
Usually ships in 3 to 5 days.
More Info
$11.93

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Ginormous Bloom Enhancer - High Power Additive - Quart

Ginormous This super bloom booster is made with macro and micro nutrients, trace elements and sugars. Crops grown with Ginormous have higher Brix levels, larger flowers and stronger aromas. Ginormous is 100% biodegradable and contains no harmful hormo... More Details

Item Number: 134546

Ginormous Bloom Enhancer - High Power Additive - Quart
Usually ships in 24 hours
More Info
$20.50

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Ginormous Bloom Enhancer - High Power Additive - Gallon

Ginormous This super bloom booster is made with macro and micro nutrients, trace elements and sugars. Crops grown with Ginormous have higher Brix levels, larger flowers and stronger aromas. Ginormous is 100% biodegradable and contains no harmful hormo... More Details

Item Number: 134547

Ginormous Bloom Enhancer - High Power Additive - Gallon
Usually ships in 3 to 5 days.
More Info
$68.32

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Ginormous Bloom Enhancer - High Power Additive - 2.5 Gallon

Ginormous This super bloom booster is made with macro and micro nutrients, trace elements and sugars. Crops grown with Ginormous have higher Brix levels, larger flowers and stronger aromas. Ginormous is 100% biodegradable and contains no harmful hormo... More Details

Item Number: 134548

Ginormous Bloom Enhancer - High Power Additive - 2.5 Gallon
Usually ships in 3 to 5 days.
More Info
$143.48

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Ginormous Bloom Enhancer - High Power Additive - 5 Gallon

Ginormous This super bloom booster is made with macro and micro nutrients, trace elements and sugars. Crops grown with Ginormous have higher Brix levels, larger flowers and stronger aromas. Ginormous is 100% biodegradable and contains no harmful hormo... More Details

Item Number: 134549

Ginormous Bloom Enhancer - High Power Additive - 5 Gallon
Usually ships in 3 to 5 days.
More Info
$254.66

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Ginormous Bloom Enhancer - High Power Additive - 15 Gallon

Ginormous This super bloom booster is made with macro and micro nutrients, trace elements and sugars. Crops grown with Ginormous have higher Brix levels, larger flowers and stronger aromas. Ginormous is 100% biodegradable and contains no harmful hormo... More Details

Item Number: 135874

Ginormous Bloom Enhancer - High Power Additive - 15 Gallon
Usually ships in 5 to 7 days
More Info
$732.92

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Sticky - Wetting Agent - 8oz

Humboldt Sticky is a premium sticking and wetting agent which has been extensively tested in Northern California with phenomenal results, and is formulated using premium ingredients which are simply unavailable in similar products. With Humboldt St... More Details

Item Number: 134884

Sticky - Wetting Agent - 8oz
Usually ships in 3 to 5 days.
More Info
$7.58

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Sticky - Wetting Agent - 16oz

Humboldt Sticky is a premium sticking and wetting agent which has been extensively tested in Northern California with phenomenal results, and is formulated using premium ingredients which are simply unavailable in similar products. With Humboldt St... More Details

Item Number: 134887

Sticky - Wetting Agent - 16oz
Usually ships in 3 to 5 days.
More Info
$12.65

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Sticky - Wetting Agent - 32oz

Humboldt Sticky is a premium sticking and wetting agent which has been extensively tested in Northern California with phenomenal results, and is formulated using premium ingredients which are simply unavailable in similar products. With Humboldt St... More Details

Item Number: 134885

Sticky - Wetting Agent - 32oz
Usually ships in 3 to 5 days.
More Info
$20.50

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Sticky - Wetting Agent - 1/2 Gal

Humboldt Sticky is a premium sticking and wetting agent which has been extensively tested in Northern California with phenomenal results, and is formulated using premium ingredients which are simply unavailable in similar products. With Humboldt St... More Details

Item Number: 134886

Sticky - Wetting Agent - 1/2 Gal
Usually ships in 3 to 5 days.
More Info
$34.84

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High Powered Additives

Sea CalSea MagBig UpGinormous
Unlike similar products which contain artificial colors, and fail to consistently perform

Organic Additives

Hum-BoltFlavorFulVerde
These premium additives supercharge your flowering plants
 

Carbohydrates

Humboldt Honey ESHumboldt Honey Hydro Carbs
Carbohydrates are crucial for plants to maintain productive and vibrant

Biological Inoculants

Mayan MicroZymeProZymeMyco MadnessMyco Maximum
The healthiest plants have root zones full of beneficial microbiology


 

 

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