For this step, you can use cactus-potting soil, soil mixed in sand, and succulent soil. Potting and repotting Aeonium. The best potting soil for your plants is one that is well-draining. After the cutting is calloused, and after applying rooting hormone if desired, you can put the cutting into a new pot filled with well-draining dirt. Place the seeds in a well-drained soil mixture such as sand, soil mix, and cover with a thin layer. Once you have the seeds in your possession, you're ready to sow. To water your plants from the bottom, the pots must be able to drain well.