Better for your plants – better for the planet. Growstone combines the best of both worlds, a superior soil aerator and a premium hydroponic substrate. Unlike perlite and hydroton which are strip mined leaving huge scars on the earth’s surface, Grow Stone is made from 100% recycled glass right here in the good ole USA.
• Ideal for indoor and outdoor gardening
• Will not break down or compact
• Does not float when irrigated
• Made from 100% recycled glass
• 4 times more aeration then coco coir
• Lightweight & dust-free
Add to your soil to increase aeration (up to 70% more than perlite) or use it as a stand-alone media in any hydroponic system. The rapid moisture absorption and increased aeration allow for more oxidation in the root zone to promote vigorous growth.