Growing a Christmas cactus from a cutting is actually quite simple. First, choose a healthy cutting from the parent plant that has at least two or three segments. Next, remove the leaves from the bottom half of the cutting and insert it into a well-draining potting mix. Finally, water the cutting and keep it in a warm, bright location until it establishes roots. Once the roots have formed, it can be transplanted into a larger pot and cared for like a regular plant.