Big Up Powder 0-33-23 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...

With an available 2% (N), 3.4% (Ca), and 1.4% (Mg) + micronutrients, Calyx Magnum gives gardeners vital nutrients needed for plant development and growth. Another huge benefit is that we created...

Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses, yucca, kelp and ocean fish. This carb source is as unique as it is strong. The ES means Extra Strength. It increases brix...

Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses, yucca, kelp and ocean fish. This carb source is as unique as it is strong. The ES means Extra Strength. It increases brix...

Humboldt Roots is a highly concentrated organic root growth supplement that expands the root zone during the critical growth stage. The soul of every plant resides in the roots. Many gardeners...

Humboldt Roots is a highly concentrated organic root growth supplement that expands the root zone during the critical growth stage. The soul of every plant resides in the roots. Many gardeners...

Humboldt Roots is a highly concentrated organic root growth supplement that expands the root zone during the critical growth stage. The soul of every plant resides in the roots. Many gardeners...

Humboldt Roots is a highly concentrated organic root growth supplement that expands the root zone during the critical growth stage. The soul of every plant resides in the roots. Many gardeners...

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 ingredients. Humboldt Nutrients has formulated this...

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 ingredients. Humboldt Nutrients has formulated this...

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

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

Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as a foliar spray or as a growth enhancer for hydroponic or soil crops, Verde...

Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as a foliar spray or as a growth enhancer for hydroponic or soil crops, Verde...

Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as a foliar spray or as a growth enhancer for hydroponic or soil crops, Verde...

Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as a foliar spray or as a growth enhancer for hydroponic or soil crops, Verde...

Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as a foliar spray or as a growth enhancer for hydroponic or soil crops, Verde...

Verde 16-1-2 It's Spanish for green. Lush green colors and vigorous growth are what you can expect with Verde. Used as a foliar spray or as a growth enhancer for hydroponic or soil crops, Verde...