Provide an open, sunny area with well-drained soil for the lavender. Mix in 6 inches of compost with the top 6 inches of soil with a shovel. This compost mixture should be enough to provide adequate drainage in even the most dense Texas soils.
Shovel the top 3 inches of soil off the top of the garden bed. Lay a 1-inch layer of gravel to improve drainage even more and create the rocky environment in which lavender thrives. Place the soil back on top of the gravel.
Dig 1-inch deep holes with each hole spaced 12 to 20 inches apart. One hole is needed for each lavender cutting.
Place one cutting in each hole, with the cut end buried in the soil. Fill in any empty space in the holes with more soil. Do not, however, pack the soil down as it may create drainage problems.
Water the soil so it's moist to a depth of 2 inches. Lavender does best with frequent, light watering sessions, so water to a depth of 2 inches each time the soil dries out. Keep the soil at this moisture level for the entire growth cycle of the lavender.