Ah, yes, a Christmas cactus! A wonderful plant that brings the spirit of the holidays to your home. To reroot a Christmas cactus, you'll need to cut a few healthy segments from the plant, usually around 1-2 inches long. Then, place the segments in a pot filled with well-draining soil and make sure they receive bright, indirect sunlight. Water the plant regularly, but be sure not to overwater it. With a little patience and care, your Christmas cactus will thrive and provide joy for years to come.