If you're lucky, you may receive a Christmas Cactus as a gift this holiday season. This common houseplant blooms during the Christmas season, but its long green arms are attractive year-round. It is a plant worth admiring with its varieties in a rainbow of colors. Christmas cacti are long-lived plants, blooming year after year in shades of red, purple, peach, and white. Learn all about Christmas cactus care as well as the Christmas cactus bloom cycle.