Categories
- Organic Gardening+
- Natural Pest Control+
- Growing Indoorsโ
- Healthy Living+

Hydro Stones (GS-1)
Who knew that the ticket to ideal root development looked like this?
Growstone Hydroponic Substrate (GS-1) is a 100% natural, recycled growth mediumย that’s perfect for vegetables, herbs and flowering plants. Spaces between the recycled glass “rocks” open up more oxygen to plant roots while the rock texture retains water without drowning roots. This combination boosts root hair development, which means better nutrient and water uptake.
Features:
โข Ideal balance between oxygen intake and water retention
โข Chemical-free growing medium made from recycled glass bottles
โข Retains up to 30% more moisture than other products
โข Great for hydroponics & drip irrigation systems
โข 100% recycled and reusable material
โข Lightweight and mess-free
Available size: 1.5 cubic foot bag
Growstone 101ย (PDF)
Product Data Sheetย (PDF)
DIRECTIONS FOR USE:
Rinse Hydro Stonesย before use. Water newly planted seedlings once or twice a day until water flows out of the container.
Growerโs Tip:
For excellent results, keep water level to within 1 in. of the surface.