Mushroom Grain Bags and Substrate

Avoid the hassle of balancing, mixing, and sterilizing your own growing medium. We offer sterilized substrates including rye berries grain bags and hardwood blocks that are supplemented with all the nutrients needed to grow beautiful mushrooms. We only use the thickest bags, and all our substrates are made with 100% certified organic materials.
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  • $77.99
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    $40.99
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