Christmas cactus is a popular holiday plant that can be found at most garden centers or nurseries. It's a tropical plant that is native to Brazil, and it's also known as Schlumbergera bridgesii. It has waxy, segmented leaves that can range in color from green to red, and it produces vibrant red or pink flowers during the holiday season. If you're looking to purchase a Christmas cactus, check your local gardening store or look online for a reputable seller.