Ten Mile Mushrooms

Wholesale
Grain Spawn

Premium Wheat/Millet Grain Spawn – Colonized to Perfection using our Top Notch Strains

At Ten Mile Mushrooms, we handle every step of the process—from agar to spawn to ready-to-fruit substrate—so you can focus on growing top-quality mushrooms. Our 5.5 lb grain spawn bags are fully colonized to perfection, ensuring vigorous mycelial growth, fast colonization times, and superior yields. Made with high-quality grains and sterilized under precise conditions, our spawn provides a strong, healthy foundation for your mushroom cultivation. Whether you’re expanding your farm or dialing in your process, Ten Mile’s grain spawn delivers the consistency and reliability you need for success.

USDA Organic Certified Grain Spawn

With our USDA Organic grain spawn, you can trust that you’re getting the cleanest, highest-quality product available. We use select, proven strains to ensure strong, high-yielding mycelium, giving farms across the USA a reliable and contamination-free foundation for their mushroom cultivation. Our rigorous sterilization and incubation processes guarantee consistent performance, so whether you’re growing at a small scale or running a commercial operation, Ten Mile Mushrooms’ organic grain spawn is the key to stronger, higher yielding harvests.

What sets our spawn apart?

Tested at multiple stages to ensure cleanliness and sterility.

Hand selected, high quality strains.

Proven track record.

What sets our spawn apart?

USDA CERTIFIED ORGANIC WHEAT AND MILLET

Tested every step of the way!

Colonized 100%

6 lb grain bags make 15-20 10 lb substrate bags

Backed by our guarantee.

8 bags per box. 224 bags per pallet!

Inquire below for more details! Truckload pricing available upon request. – Truckloads can save you exceptional amounts on shipping. Shipping 1 Pallet LTL may be 1/10 – 1/8 of the price of a truckload, which holds 22 pallets. You can see how buying in bulk can save!

The Spawn Master Consultation

At Ten Mile Mushrooms, we don’t just supply top-tier substrates—we help farms thrive. Our consultation services are designed to give growers the insights, strategies, and hands-on guidance they need to streamline production, boost yields, and scale efficiently. Whether you’re just starting out or looking to optimize your current setup, our expertise in commercial mushroom cultivation will help you avoid costly mistakes and maximize efficiency. From dialing in your substrate process to refining fruiting conditions, we’re here to help you take your farm to the next level. Ready to grow smarter? Let’s talk!

Get your appointment through Google Calendar!

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CONTACT US

If you’d like to inquire, click the links above and fill out the forms. If you do not have access to the forms, send inquiries here!