Dig around 4 inches of compost into the topsoil of the garden bed where you want to plant the lemongrass, or into a container filled with potting soil. While lemongrass is tolerant of many soil types, it does best in humus-rich, well-draining soil. Allow the garden bed or container to "percolate" for a week or two before planting the lemongrass shoots.
Make a small hole in the garden bed or container soil, just large enough to accommodate the roots and first 2 inches of the lemongrass shoots. Plant the lemongrass shoots in the hole and pat the soil down around the stem of the shoots to keep it standing upright. Use gloves when handling the lemongrass, as it has sharp edges on the leaves and cuts easily.
Water the lemongrass slowly but deeply, so that the first 8 to 10 inches of soil is wet. Keep the soil moist while the young plants take root in the soil, around three weeks, then water weekly thereafter.
Check the lemongrass in very hot summers as it may require extra watering. Browning leaves are a sign that the plant needs more water.