Mycelial Growth Promoter™ 60ml | Williams Co Supplies
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Mycelial Growth Promoter

Mycelial Growth Promoter™ 60ml

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 Increase yields by up to 30%
 Reduce contaminations
 Healthier fruits
 Benefitial bacterial strains
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Our growth promoter spray contains a blend of beneficial bacterial microorganisms which increase yields, promotes healthy growth and prevents the infamous Trichoderma (Trich for short).

This is perfect for anyone having issues with contamination as the microorganisms fight off the dreaded trich. When using our Growth Promoter Spray we have seen around a 30% increase in yields as well as faster pinning; around 3 days before our untreated batch.

Works on coco coir, manure, straw, masters mix and many other substrates.

How to use

  • Shake bottle
  • Apply 5-10 pumps per 1L of bulk substrate when spawning-to-bulk
  • Mist every 2 days thereafter

    Delivery Information

    Your order will be sent with Royal Mail or Parcelforce, you will receive an email once it has been dispatched. Orders are dispatched within 2 days unless stated otherwise. Plain packaging.

    30 Day Money Back Guarantee

    We offer a money back or replacement guarantee on all of our products. To claim your replacement or refund please send us photos of the issue to: and we will do our best to help you.