Christmas cacti are native to the tropical regions of Brazil and are typically grown as houseplants. To make a Christmas cactus bloom, you'll need to provide the proper care and conditions. First, provide plenty of bright, indirect sunlight. This will help the plant produce more energy and help it bloom. Next, you'll need to keep the plant in a cool, humid environment. A temperature between 60-65 degrees Fahrenheit is ideal, and 50-80% humidity is recommended. Lastly, you'll need to provide regular water and fertilizer, and avoid overwatering.