Vermiculite (H2O retention)


Vermiculite absorbs water and is a key ingredient in many aspects of mushroom growing and fruiting. Vermiculite is a popular add on to almost any kit; tub; jar; cake; substrate  casing or growing project.

  • Use to roll your colonised cakes in after dunking. This helps them stay hydrated and grow bigger.
  • Add a thin layer to any bulk grow and mist with water. This helps it absorb water and keeps the cake better hydrated to create bigger mushrooms.
  • Great for substrate aeration.


Additional information


2.5litre, 5litre, 10litre


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