Christmas cacti are popular during the holiday season because they bloom in vibrant shades of red, pink, and white. These plants are native to Central and South America and are easy to care for. When it comes to repotting a Christmas cactus, it's important to understand that they prefer to be root-bound, which means that their roots should be slightly cramped in their pot. If they are too loose, they may stop blooming altogether. To repot a Christmas cactus, follow these steps: