The trick to growing lavender in the humidity and clay soils of Georgia is to find a variety that does well here, keep it pretty dry and provide sun, excellent drainage and air circulation. A raised bed or container would work well for lavender; just combine it with plants that also can take it dry, like lantana, verbena, sedum and daylilies. In the ground, add gravel and maybe a little lime to provide the conditions it prefers. It will not fare well with our humid summers planted in a crowded, irrigated flower border. Provence and Spanish lavender are two that seem to do well in this area.