The Christmas cactus lacks real leaves. Rather, it contains segmented stems made up of separate cladophylls that develop in a flattened chain end to end. The cladophylls contain chlorophyll, which aids photosynthesis and the production of food in plants, and the terminal cladophylls bear flowers. When the joints between the cladophyll segments of a Christmas cactus are strained, they might develop weak links. The plant appears to be crumbling apart as these weak linkages break off and fall from the plant.
Why are parts of my Christmas cactus falling off?
The Christmas Cactus (Schlumbergera) is one of my favorite plants for several reasons: it’s beautiful, it blooms during the holiday season when most other plants aren’t, and it blooms year after year for decades. It’s no surprise, however, that the sight of a Christmas Cactus shedding leaves will be alarming.
Overwatering or conditions that result in damp soil are the most prevalent causes of a Christmas Cactus loosing leaves. This results in root rot and other damage to the plant. Leaf drop can also be caused by poor drainage, temperature stress, overfertilization, lighting issues, or pests.
How can you tell if a Christmas cactus is overwatered?
Although sagging, limp leaves and stems that are mushy at the bottom are strong indicators of overwatering and root rot, the only way to know for sure is to examine the plant’s roots.
How frequently do you water Christmas cactus?
- Water every two to three weeks, but only until the top one-third of the soil feels dry to the touch. Water when the top 2 inches of soil feel dry, for example, if the plant is in 6 inches of soil. (Check with your finger!)
- Soak the soil until water runs through the drainage holes in the pot when it is suitably dry. To catch the water, place a tray underneath the pot. Remove any extra water from the tray after 10-15 minutes so that the pot does not sit in water.
- Feed every two weeks with a balanced houseplant fertilizer from spring through early fall. Feed the cactus once a month in the fall and winter to encourage blooming.
- Late in the spring, prune plants to encourage branching and more flowers. Simply cut a few portions off each stem, and the plant will branch out from the wound.
- Place the cut pieces in a gently wet potting soil if desired; they will root easily after a few weeks and make great Christmas gifts!
How to Get Your Christmas Cactus to Bloom
The lower temperatures and longer evenings of autumn bring out the blooms of Christmas cacti and its relatives. This is the general blooming schedule for the three main species of Christmas cacti:
- Thanksgiving cactus are the earliest and most persistent bloomers, blooming from late October to mid-winter.
It’s possible that your cactus isn’t flowering because it’s getting too much sunshine or being exposed to too hot temperatures. Here are some pointers to help you get yours to bloom!
- For at least six weeks, nights must be at least 14 hours long and days must be between 8 and 10 hours. If you have powerful interior lighting that is turned on at night, you may need to cover your cactus or transfer it to a location where it can be exposed to natural light.
- Flower buds form best when the plant is kept between 50 and 60 degrees Fahrenheit (10 and 15 degrees Celsius).
- By exposing the plant to temperatures of around 45°F (7°C) for several nights in a row, you can jumpstart the budding process.
- Ensure that you water the plant on a regular basis when it is in bloom. If the plant dries out too much, the buds may fall off.
- Don’t worry if the cactus loses its buds throughout the winter; it will bloom the next year!
How do you rejuvenate a Christmas cactus?
Repot the Christmas cactus into fresh soil when it is extremely limp and the soil is moist. Remove the wilting Christmas cactus from its pot and gently scrape away as much soil as you can. Make your own repotting soil to avoid future Christmas cactus issues. Use two parts potting soil to one part sand or vermiculite in a top grade potting soil to ensure sharp drainage.
How do I know if my Christmas cactus is dying?
A wilted, limp, drooping Christmas cactus with root rot will show wilted, limp, sagging growth, but an examination of the roots will reveal the truth.
Remove the plant from its pot with care. The roots of a rot-affected cactus will be dark at the tips. The decaying Christmas cactus roots will be sticky with black or brown decomposition, depending on the severity of the disease.
If you see that your Christmas cactus is rotting, you must act quickly. Rot is a fatal disease, and the only way to save the plant once it has progressed is to discard it and start over. You can generate a new plant using a leaf from a healthy area of the plant.
How do you know when to repot a Christmas cactus?
Christmas cactus repotting should be done after blooming has ended and the blooms have withered in late winter or early spring, when most plants are best repotted when they show new growth. When the plant is actively blooming, never try to repot it.
Repotting a Christmas cactus isn’t necessary because this tough succulent thrives when its roots are little congested. Repotting the plant on a regular basis can harm it.
What does Underwatered Christmas cactus look like?
The health of any cactus that has been let to sit in a saucer full of water is likely to suffer. A Christmas cactus plant that has been overwatered will display evident indications of discomfort. If the saucer hasn’t dried in one day, dump the extra water to avoid moisture gnats and root damage.
If you don’t remember to water your Christmas cactus, one of the first signs of overwatering is limp leaves that begin to fall off. The stems and branches will soften and become mushy as a result. In severe situations, the stem will rot entirely off and emit a horrible stench.
It’s easy to avoid. To avoid over-watering your Christmas cactus, use a soil meter.
How do I fix an overwatered Christmas cactus?
How can I revive a Christmas cactus that has been overwatered?
- Eradicate the roots from the pot and cut away any rotten roots, then wash the remaining roots to remove any fungus.
- Leave the plant in a warm, well-ventilated room overnight to allow the roots to dry out.
How long can Christmas cactus go without water?
The Christmas Cactus (Schlumbergera) is a cactus that thrives in Brazil’s chilly, mountainous forests in shaded locations with high humidity and regular rains.
Most cacti, on the other hand, prefer to grow in dry, arid, sunny environments.
Because they are accustomed to cool, humid circumstances, unlike their desert siblings, one of the most common challenges with growing Christmas cactus is not watering them enough.
To grow Christmas cactus successfully in your house you have to imitate some of the watering and humidity requirements of its original habitat.
The Christmas cactus necessitates a higher level of humidity than most houseplants. Once or twice a week, mist the leaves with a spray. Throughout the year, give the cactus a good bath in water once a week.
This watering frequency, combined with the correct well-draining potting soil, helps to simulate the moisture balance to which it is accustomed, avoiding overwatering and underwatering issues.
The soil should feel evenly moist for most of the week drying slightly on the surface before the next bout of watering.
Christmas cactus are also more drought tolerant than most houseplants, and may last up to two weeks without watering if not in direct sunlight or if the air isn’t too dry.
It should be remembered that there are various reasons which can cause your Christmas cactus to dry out faster or slower in the home owing to:
- Your home’s humidity and temperature (houses are often low in humidity which is contrary to Christmas cactus preference for high humidity).
- Whether the cactus is near a heat source or in an air conditioning or forced air current (which saps moisture from the leaves and dries the soil).
- The soil’s ability to retain moisture (Christmas cactus require moist yet well draining soil).
If you live in a low-humidity environment or if the air conditioner is frequently turned on, water your Christmas cactus to create a microclimate of enhanced humidity to offset the effects of dry air.
I recommend sprinkling the cactus at least once a week, regardless of environment, because homes are typically dry, but in dry areas, mist the cactus twice or three times a week.
Keep in mind that Christmas cactus likes indirect light over direct sunlight. The leaves would be burned by too much sun, and the cactus would lose too much moisture.
How to Tell if the Christmas Cactus is Over watered or Under watered…
Because the cactus can shrink and droop as a result of both over and under watering, the only method to tell which is which is to feel the soil.
The cactus is suffering from underwatering if it is dry both on the surface and at the base of the container (feel the dirt at the base through the drainage hole).
If your soil is drying out quickly, increase the frequency of your watering over the period of 7 days to keep the soil moist rather than dry.
To enhance humidity and prevent water loss via the leaves, mist the under-watered cactus more frequently.
If the soil seems damp or even saturated, make sure the drainage hole is clear and remove any water that may have collected on a tray or saucer underneath the pot.
Overwatering or soggy soil can prevent the cactus from developing and blooming properly, as well as create root rot, so cut back on the watering and make sure the soil drains well.
Should I mist my Christmas cactus?
Christmas cacti, contrary to popular belief, may live much beyond the month of December. With a little TLC and some advise from us, they can live for up to 20 years.
Christmas Cacti need cooler temperatures.
If you keep your Christmas cacti in a room that’s between 60 and 70 degrees Fahrenheit, they’ll bloom more and faster. It’s especially vital to keep them away from radiators, fires, and warm windowsills in the winter.
While they don’t need the heat of the sun, they do need its light.
This is when things get a little complicated. The sun will dry up a Christmas cactus if it is left in direct sunlight, although it does require lots of sunlight. So, what should a cactus aficionado do? Leave it in a somewhat shaded location of your house (or outside once summer arrives) and rotate it every now and then.
Just like you and I, Christmas cacti need their rest.
If the buds on your cactus haven’t set yet, it will require 1215 hours of complete darkness per day. Cacti flourish in bright light only once their buds have set.
You should be misting, not watering, every day.
Your cactus will die if it is overwatered. That isn’t to suggest they don’t become thirsty. You should mist your cactus every day instead of watering it like you would a typical plant. All you need is a few squirts from a spray bottle to keep your cactus happy. Watering the plant’s base should only be done when the soil is absolutely dry to the touch.
Christmas cacti need nutrient-rich soil.
Christmas cactus are resilient plants that may thrive in a variety of soils, but they need well-drained, somewhat organic matter-rich soil. While you can always buy organic soil, you may also use your cacti as a little compost and add organic materials that would otherwise be discarded.