Worm castings would be the digested “soil” made by worm farming or vermicomposting. They offer some macronutrients for leaf expansion; in this case, its NPK ratio is 1-0-0. But they also incorporate micronutrients and useful microbes, and strengthen drainage and soil structure. This fertilizer is available in a granular type. https://www.instagram.com/bluedeebajfzco