Spent Mushroom Substrate

The Mushroom Club™ Verified independent store

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Enter back parking lot via Claremont Ave. Our building is blue with a white garage door. Spent mushroom substrate is the soil-like material remaining after a crop of mushrooms. Spe nt substrate is high in organic matter making it desirable for use as a soil amendment or soil conditioner. Key Benefits: Add to gardens or soil beds Spread on newly seeded lawns Let weather to reduce salt content Check out this blog post! Show more