Spent Mushroom Substrate

$7.99
sold out

Spent Mushroom Substrate (SMS) is a great addition to your soil amendment and conditioners. Our SMS increases microbial activity providing nutrients while improving soil structures, and drainage, and reducing surface crusting and compaction.

If you need Our SMS for Commercial Use please contact us on the contact form, we would be glad to help send over a larger quantity.


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Spent Mushroom Substrate (SMS) is a great addition to your soil amendment and conditioners. Our SMS increases microbial activity providing nutrients while improving soil structures, and drainage, and reducing surface crusting and compaction.

If you need Our SMS for Commercial Use please contact us on the contact form, we would be glad to help send over a larger quantity.


Spent Mushroom Substrate (SMS) is a great addition to your soil amendment and conditioners. Our SMS increases microbial activity providing nutrients while improving soil structures, and drainage, and reducing surface crusting and compaction.

If you need Our SMS for Commercial Use please contact us on the contact form, we would be glad to help send over a larger quantity.