Dillo Dirt™ is a topdressing fertilizer made by the City of Austin since 1989. Austin started one of the first biosolid compost programs of it’s kind in the state and one of the oldest in the nation.
Dillo Dirt™ is a quality soil mixture made from recycled materials. While Austin strives to stay green, the city collects curbside leaves, grass, branches and Christmas trees that are used to make Dillo Dirt™.
All yard trimmings collected curbside across Austin as well as some of our treated sewage sludge are combined and composted to create Dillo Dirt™. The heat generated in composting (up to 170 degrees Fahrenheit) is sufficient enough to essentially eliminate human and plant pathogens. After active composting for over a month, the compost is “cured” for several months, then screened to produce finished Dillo Dirt™.
Dillo Dirt™ easily meets all Texas and EPA requirements for “unrestricted” use, which even includes vegetable and flower gardens. Dillo Dirt™ serves as a compost that adds to the organic matter in the soil, reducing watering. Organic matter feeds the microbes in the soil as well as plants, making a more healthy environment.