From Dead Dirt to Living Soil: Using Vermicompost Tea

In this episode of ATTRA's Voices from the Field, sustainable ag specialist Audrey Koldy interviews Garber Ackers, a farmer educator and advocate for regenerative agriculture, about the transformative power of aerated vermicompost tea. Ackers shares his journey from idealized organic farming at UC Santa Cruz to confronting degraded soils in the Southeast, where he discovered that traditional inputs failed to restore vitality. Through hands-on experience, he found that aerated worm casting tea—made from earthworm castings, kelp extract, and molasses—could rapidly rebuild soil health, reduce plant stress and disease, and dramatically cut input costs. He explains how the tea works as a biological inoculant and stress adaptogen, stimulating the soil carbon pathway and enhancing plant resilience by fostering symbiotic relationships between microbes, plants, and soil. Ackers emphasizes that the tea addresses all three pillars of soil health—structure, chemistry, and biology—simultaneously, making it a scalable, cost-effective solution for farms of all sizes. He also shares practical guidance on brewing, application, and avoiding common pitfalls like using chlorinated water or over-relying on molasses. The episode concludes with a powerful vision of farmers rejoining the natural metabolic cycles of the earth, becoming active participants in living systems rather than external controllers.