Aerating Perlite Stones

Perlite is a naturally occurring mineral that forms when obsidian is heated to extreme temperatures until it expands and forms a lightweight and highly porous growing material.  


  • 500mL packs
  • Easy to use and mess-free
  • Neutral pH
  • Inorganic and inert
  • The surface of the perlite has tiny holes all over that allow better root aeration and increase the available surface area for nitrate crunching bacteria to grow (perfect for aquaponic systems).


Can be mixed with vermiculite, expanded clay, peat moss, coco coir and regular soil to increase aeration, porosity and drainage characteristics.

Best used in our Indoor Smart Gardens and XL Smart Gardens, but also suitable with the Hydropot series and even EcoKitchens!

For more information on growth mediums, check out our blog post here.

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