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sterilized mushroom grain bags and supplemented hardwood substrate blocks

Sterilized Mushroom Substrates

(4 products)

Avoid the hassle of balancing, mixing, and sterilizing your own growing medium. We offer sterilized substrates 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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