1220 5th St, Arcata, CA 95521
(855) 707-3276
info@HumboldtAgSupply.com

Soluble Powders

Fast-acting source of nutrients and growth stimulators.

Soluble Powders, like Liquid Nutrients, are fast-acting source of nutrients and growth stimulators, just shipped without the water! 

Full Mineral Fulvic Powder. 

Humic Acid Powder 58.5%

Kelp Powder 1-0-18

Nitro Soy Blast 12.9-0-0 Amino Powder

Soluble Micronutrients

Yucca Powder

Northcoast Horticulture Supply Logo

Looking for a more full featured dry nutrient?

Our sister company, Northcoast Horticulture Supply, has you covered! We plenty of 'complete nutrient lines' in the dry nutrient category, you'll find everything Humboldt County growers expect from a grow store.

Check out our other product categories