Our premium horticulture vermiculite is simply the best grade and variety for mushroom growers.  We use a 50/50 mix of medium and coarse Sun-Gro Premium grade Horticulture vermiculite in all our products! 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 or growing project.

• Use to roll your colonized 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.
• Plus many more
  • 1 Gallon of our Sun-Gro Brand premium horticulture vermiculite
  • Premium horticulture grade, medium/Coarse Mixed (Asbestos Free)
  • A very popular add-on item for any Kits/Jars/Spawn Bags & bulk casing grows!
  • Use during fruiting stage to help cakes absorb additional moisture