Welcome to Granite Valley Mushroom Company

About Us

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What we provide

At Granite Valley Mushroom Company, we are committed to providing you with the highest quality products.  Whether you need anything from spawn, liquid and tissue cultures, to ready to grow kits and lab supplies, we've got you covered.

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Buy with Confidence

 We strive to provide the cleanest, most vigorously growing cultures available.  Granite Valley Mushroom Company guarantees that our cultures will be clean and viable upon arrival at your location. 

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Start shopping today!

Contact Us

Drop us a line!

We love our customers, so feel free to reach out with any questions or concerns.

Granite Valley Mushrooms

82 Stebbins Road, Monson, Massachusetts 01057, United States

413-340-4400