For optimal growth, ponytail palms require a well-draining potting mix that mimics their native environment. A typical blend includes equal parts cactus potting mix, perlite, and coarse sand. Cactus mix provides the necessary structure and drainage, perlite enhances aeration, and sand improves water permeability. Ensure the mix is light, porous, and allows for quick drainage to prevent root rot and promote healthy root development.