Substrate | Williams Co Supplies

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Substrate

Various ready-to-use bulk substrates, making the whole spawn to bulk process extremely easy.
Simply open up the heat sealed bag and mix with your colonised grains.
Need help calculating how much substrate you need? Here's our handy substrate calculator

13 products
  • $52.00
    $52.00
    $65.00
    Sold out
  • Pasteurised Coco Coir Mushroom Bulk Substrate
    $33.00
    $33.00
    $33.00
    Sold out
  • Pasteurised Coco Coir Mushroom Bulk Substrate
    from $11.00
    from $11.00
    Sold out
  • 5LB / 2.2KG Pasteurised Manure Mushroom Bulk Substrate
    $33.00
    $33.00
    $39.00
    Sold out
  • Mycelial Growth Promoter
    $20.00
    $20.00
    $33.00
    Sold out
  • $45.00
    $45.00
    $65.00
    Sold out
  • 5LB / 2.2KG Sterilised Masters Mix Substrate | Fruiting Block
    $39.00
    $39.00
    $39.00
    Sold out
  • 5LB / 2.2KG Sterilised Supplemented Hardwood Substrate | Fruiting Block
    $39.00
    $39.00
    $39.00
    Sold out
  • 5LB / 2.2KG Sterilised Master Straw Mix Substrate | Fruiting Block
    $39.00
    $39.00
    $39.00
    Sold out
  • $16.00
    $16.00
    Sold out
  • from $174.00
    from $174.00
    $193.00
    Sold out
  • from $277.00
    from $277.00
    $65.00
    Sold out
  • $39.00
    $39.00
    $52.00
    Sold out