Christmas cactus, or hybrid Schlumbergera buckleyi, is a well-known cactus in the Cactaceae family that is grown for its eye-catching cerise flowers, which bloom inside around the time of Christmas in the Northern Hemisphere. The majority of Christmas cacti that are currently grown are thought to be hybrids between S. russelliana and the Thanksgiving, or crab, cactus (Schlumbergera truncata, originally Epiphyllum truncatum). It is native to Brazil, where it grows as an epiphyte in rainforests, primarily on trees or bushes but also in shaded areas among rocks. It is a member of the Schlumbergera genus. Zygocactus, the alternate name for the genus, is commonly used.
The Thanksgiving cactus and the Christmas cactus are sometimes confused, although the former has crenated (rounded) stem joint margins, and the latter has strongly saw-toothed stem joint margins. Thanksgiving cacti are frequently mistakenly marketed as Christmas cacti since they bloom in the late fall.
When is the best time of year to purchase a Christmas cactus?
In the late fall and winter, Christmas cacti are typically bought already in bloom or at least budded. Avoid drastic temperature changes when transporting your Christmas cactus since they can cause some of the buds to fall off. For optimal results, place in a light window and maintain the soil just moist enough. During the winter flowering season, fertilizer is not required.
Christmas cacti require as much light as possible once the last blooms have faded and prefer to be maintained on the cool side during rest periods (February – March and July – August). The plant needs to be transferred to a normal room temperature once the flower buds begin to appear in the fall.
At the start of the growth period, these cacti should be repotted every three to five years. It’s important that the soil flow easily, so always use a light soil (commercial cactus soil is acceptable).
The right amount of water, food, and relaxation must be given at the right times. Additionally, the length of daylight and the temperature of the environment will affect flowering.
The plant needs to rest when flowering is finished. Sparingly water it; do not let the stems to shrivel. If at all feasible, relocate the plant to a cool, well-lit area.
From the first of April, begin watering more frequently. Now that winter is over, the cactus will begin to flourish once more. The tips of each stem will have fresh shoots that may be seen plainly. If necessary, pot in April, and then feed a few times throughout the following months. Use a regular cactus soil that allows water to drain freely. If the soil is excessively damp, the weak roots will decay.
Christmas cacti can be placed outside in a light spot once the weather warms up. Avoid direct sunlight because certain types’ stems might become sunburned. I prefer bright, dappled shade.
This time of year is ideal for taking cuttings if you wish to. Placing good stems with two to four segments in damp sand makes propagation simple.
Reduce watering and let the soil completely dry in between waterings so that it doesn’t shrivel.
If you have your cactus outside for the summer, you can leave it there until the temperatures at night fall below fifty degrees (this period of cool nights and shortening days will encourage lots of flower buds). Restart increasing watering as soon as there are any indications of blossom buds. When growing blooms, the cactus must never become dry or be moved around excessively, as this will cause the buds to fall off the plant.
Mid-fall is when you should start to notice little, spherical buds emerging at the tips. When buds are growing in September and October, a few fertilizer applications may be beneficial for an old, huge plant.
It is diagnosed as needing more water. Give it a good soak in a basin of water or the sink, and after about 30 minutes, let it completely drain.
The roots are rotting, thus that is the diagnosis. Either the soil composition is incorrect or the plant has been overwatered. Take good cuttings and establish new plants because the plant cannot endure much longer.
The plant has either experienced too much movement or not enough water during the period when it establishes its buds, according to the diagnosis. More care should be given to it; observe the results. The next bloom cycle might be all that’s necessary for you to witness its splendor.
This year, give a Christmas cactus a try! The plant you purchase now might end up as an heirloom tomorrow!
In Arizona, can Christmas cactus survive outside?
- Once a month, usually between March and October, after the plant has finished blooming, fertilize with half-strength liquid fertilizer.
- The cactus thrives well in the shade during the summer but needs to be kept indoors during frosts.
- According to Clark, Christmas cactus prefers to be root-bound, so you won’t need to repot for years. The potted plant can be inserted into a prettier container.
- Use cactus soil with sufficient drainage if you decide to repot.
- Seader advises against planting in areas where it might be exposed to cold. He claims, “I think they look prettier in pots anyway.”
The bright-red winter fruit of the Christmas cholla (Opuntia leptocaulis) is maturing at this time of year, giving it a festive appearance.