During the holiday season, stores are filled with beautiful Christmas cacti in a range of colors such as red, pink, yellow, orange, white, and purple. While many people are drawn to these exotic shades, the real challenge is keeping the plant healthy and blooming for years to come. The plant is known by various names, including Christmas cactus, Thanksgiving cactus, holiday cactus, and crab cactus, due to its leaf-shaped stem segments that resemble claws or teeth along the edges. The Easter cactus, on the other hand, has rounded leaf segments. These cacti all originate from the southeastern coast of Brazil and grow as epiphytes in shady, humid forests.
Although the Christmas cactus is classified as a cactus, it requires different care than its desert counterparts since it is a forest cactus. Therefore, its care needs are based on its place of origin. The plant prefers to be “pot bound,” meaning it should remain in a small container for as long as possible before moving to a slightly larger pot. It also requires a rich, organic potting mix and should never be allowed to dry out. During blooming season, water the plant more frequently. Bright, indirect light is optimal for the Christmas cactus, while direct sunlight can cause the leaf segments to turn dark red.
The key to getting the Christmas cactus to bloom again after its initial purchase is light and temperature. The plant produces flowers in a cool environment during a short day cycle. To encourage flower bud production, the plant requires at least eight days of 16 hours of darkness and eight hours of light each day. Avoid turning on the lights at night, as this disrupts the required dark cycle. The ideal temperature for the plant is around 61 degrees Fahrenheit, and it should not be exposed to cold or hot air. Placing the plant on a cool windowsill without turning on the lights can satisfy these requirements.
If the plant sets flower buds and then falls off, it is likely due to too much or too little water or a lack of air. However, Christmas cacti are generally considered easy to rebloom if their temperature and light requirements are met. By providing proper care, you may even be able to pass on a giant, beautiful Christmas cactus to your loved ones.