Planting a Christmas cactus can be a bit tricky, as they are particular about their growing conditions. It's important to choose a pot that's large enough to accommodate the plant's root system, as well as a well-draining soil mixture. Once you have the right pot and soil, you can repot your Christmas cactus during the spring or summer months, when the plant is in its active growing phase. Make sure to handle the plant gently and avoid damaging the roots or stems during the transplant.