SOIL FERTILITY MANAGEMENT
Humboldt Ag Supply is your partner in soil fertility management — delivering leading sustainability, technology, and efficiency. Together we can produce measurable results year after year without harmful chemicals.
CUSTOM SOLUTIONS
What to put in the ground, how much, and when? Humboldt Ag Supply can support all of your soil fertility needs with our comprehensive product offerings — sustainable fertilizers that promote beneficial soil biology.
SUSTAINABILITY
We work hard to bring you unique, effective, and low-impact materials from high quality producers. And we’re always looking for products that will help you build a solid foundation for healthy crops.
Sustainable, straight out of the gate
A Better Way to Fertilize
The best growth happens when you have access to the right materials and cutting-edge information. We offer soil and water testing to our farmers and we can develop an amendment program full of fertilizers matched to your needs. And we provide convenience and savings with delivery options and Farmer Direct bulk pricing.
The Right Products for You & Your Farm
What to put in the ground, how much, and when? Humboldt Ag Supply can support all of your soil fertility needs with our comprehensive product offerings — sustainable fertilizers that promote beneficial soil biology.
We work hard to bring you unique, effective, and low-impact materials from high quality producers. And we’re always looking for products that will help you build a solid foundation for healthy crops.
WATER & SOIL TESTING
For your convenience soil samples can be left for testing at any of our NHS stores or our new Humboldt Ag Headquarters at 513 K st. Arcata.
NUTRIENT MANAGEMENT PROGRAMS
We’ll put together an easy to follow schedule for your farm’s soil type and nutrient requirements. We use our knowledge & training to make the science easy to understand
HIGHER PRODUCTION WITH LESS INPUTS
We can help your farm make more money by providing only exactly what your plants need to increase yield, and not extra fillers or nutrients your soil already has.
SUSTAINABILITY IS OUR MISSION
We want Humboldt to grow, and that takes growers in Humboldt to succeed & pass their farm down to the next generation of farmers. Together, we can make that happen!
Our Family, Our Team
Under the direction of Northcoast Horticulture Supply, our companies have joined forces under one roof. Collectively, we offer an all-inclusive, one-stop shop for all your industry needs
Humboldt Ag Supply
Custom Soil Blends & Amendments
Northcoast Horticulture Supply
Garden Supplies, Services, & Solutions
Humboldt Green Week
Empower the Community
Get Your Nutrient Management Plan Right Now!
Latest News
Keep up to date with the Humboldt growing scene right here.
Northcoast Horticulture Supply Vendor Dayz Event
Northcoast Horticulture Supply is gearing up for our biggest store event of the year during Humboldt Green Week. Come on out to our 14th annual customer appreciation event during Vendor Dayz. Stop into[…]
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We’re happy to answer product or cultivation questions, field inquiries about products you don’t see on our website, or chat about the future of your farm. Please fill out the form below if you need assistance.