The Big blue lilyturf, Liriope muscari, thrives in soil that is rich in organic matter. Ideally, the soil should be loamy, which offers a good balance of sand, silt, and clay. This type of soil structure ensures adequate root support, optimal nutrient availability, and excellent moisture retention. Gardens with this soil type allow Big blue lilyturf to produce lush foliage and vibrant flowers. If your garden's soil is too sandy or heavy with clay, consider amending it with organic matter to achieve this balanced composition.