Our Sod mix is designed for using underneath sod lawns, but also works well for trees, and shrubs. This well drained soil is the most sandy blend we produce. Ingredients include: sandy loam, organic aged mushroom compost, organic green waste, organic chicken manure, grape pomace, composted forest products (Redwood, Fir & Oak sawdust/shavings), organic dairy manure, gypsum, oyster shell flour, and 15-15-15 fertilizer.