About GreenGro

The seeds of GreenGro Biologicals were planted long before our founding in 2009 in Windsor, California. Our inspiration begins with terra preta — the legendary “black earth” of the Amazon basin — where ancient soil-building practices created some of the most fertile soils on Earth. By combining these ancient soil-building techniques with modern biological science, we translate the proven success of terra preta into practical solutions to help growers build rich, living soil in their own backyards.

At GreenGro Biologicals, we formulate products that restore and strengthen living soil systems. Using all-natural and organic ingredients — and never harsh synthetics — our solutions enhance microbial activity, improve nutrient availability, and support stronger root development.

Healthy soil isn’t just dirt — it’s a living ecosystem, teeming with microorganisms working in symbiosis. Our products support these beneficial relationships to build resilient soil, helping plants grow stronger, withstand stress, and produce better results.

Our mission is simple: to empower growers to cultivate fertile, living soil through the wisdom of nature and the precision of modern science. We envision thriving plants, regenerative ecosystems, and communities working in harmony with the soil that sustains them.