Growstone Growing Mediums

View as: Grid View List View
$11.99 - $46.75
The only scientifically proven, non-toxic environmentally friendly fungus gnat control product on the market that creates a physical barrier against fungus gnats.
Growstones are earth friendly, with 97% of their content consisting of recycled glass products. Even the bag is made from recyclable paper.
Sort by Manufacturer

Growstone