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Collection: Mushroom Grain Spawn

Our grain spawn is grown on 100% certified organic rye berries. It arrives contaminate free, fully developed, and ready to use. Grain spawn is used to inoculate many bags of bulk substrate quickly, and is the choice methodology for medium and large scale growers.
9 products
  • Black Pearl King Oyster Mushroom Grain Spawn (1 pound)
    Black Pearl King Oyster Mushroom Grain Spawn (1 pound)
    Regular price
    $19.99
    Sale price
    $19.99
  • Blue Oyster Mushroom Grain Spawn (1 pound)
    Blue Oyster Mushroom Grain Spawn (1 pound)
    Regular price
    $19.99
    Sale price
    $19.99
  • Chestnut Mushroom Grain Spawn (1 pound)
    Chestnut Mushroom Grain Spawn (1 pound)
    Regular price
    $19.99
    Sale price
    $19.99
  • Golden Oyster Mushroom Grain Spawn (1 pound)
    Golden Oyster Mushroom Grain Spawn (1 pound)
    Regular price
    $19.99
    Sale price
    $19.99
  • Hen of the Woods Mushroom Grain Spawn (1 pound)
    Hen of the Woods Mushroom Grain Spawn (1 pound)
    Regular price
    $19.99
    Sale price
    $19.99
  • Italian/Phoenix Oyster Mushroom Grain Spawn (1 pound)
    phoenix oyster grain spawn
    Regular price
    $19.99
    Sale price
    $19.99
  • King Oyster Mushroom Grain Spawn (1 pound)
    King Oyster Grain Spawn
    Regular price
    $19.99
    Sale price
    $19.99
  • Lion's Mane Mushroom Grain Spawn (1 pound)
    Lions Mane Grain Spawn
    Regular price
    $19.99
    Sale price
    $19.99
  • Pink Oyster Mushroom Grain Spawn (1 pound)
    pink oyster grain spawn
    Regular price
    $19.99
    Sale price
    $19.99