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Contact Us

Humboldt Ag Supply can help you grow. Get in touch to schedule your soil test, set up an account, or explore our products.

Toll-Free

855-707-Farm

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Clean
and Green

We’re always looking for sustainably produced materials to enrich your soil and support healthy crops. That can often mean an organic certification, but it goes beyond serving you with a sticker or a stamp.

We partner with producers that share our commitment to minimizing overall impact, whether through offsetting efforts like investing in bio-rejuvenating projects or directly in the manufacturing process.

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Biochar
Supreme

With roots firmly planted in the Northwest, Biochar Supreme works tirelessly to make the planet a better place. Beyond their exceptional organic products, the company regularly partners and consults on massive environmental remediation projects, from rain gardens to saltmarsh restoration. And their manufacturing process takes sustainability to task by producing green energy and sequestering GHGs.

We’re proud to be Northern California’s exclusive supplier of Biochar Supreme products, including Black Owl Biochar.

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Make it a
Humboldt day

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On the Ground

Prep your starts early to beat the spring rush. Once your greenhouse is at capacity, identify and implement a pest management strategy that will keep your garden happy and healthy.