The Christmas cactus is a popular houseplant for a reason: it’s beautiful! They produce gorgeous, tubular flowers in pink or lilac colors when they bloom. They’re a fantastic plant because of their lovely blossoms, long bloom time, and low maintenance requirements. We’re sure you have a Christmas cactus in your household!
About Christmas Cacti
The Christmas cactus (Schlumbergera x buckleyi) and its cousins do not live in hot, arid conditions like deserts or plains, unlike other cacti. These epiphytic succulents are native to southern Brazil’s tropical rainforests, where they grow on tree branches and absorb the high humidity, dappled sunlight, and moderate temperatures.
The bottom line is that you shouldn’t treat a Christmas cactus like any other cactus or succulent. They can’t withstand the same hot, dry circumstances as other cactus. These cacti require more frequent watering than most succulents, but you must be careful not to overwater them. (For more information, see the thorough care instructions below.)
Thanksgiving, Easter, or Christmas Cactus?
Easter cactus (S. gaertneri), Thanksgiving cactus (S. truncata), and Christmas cactus are the three primary types of “holiday” cacti (S. x buckleyi). Each holiday cactus blooms closest to the holiday for which it is named. Most “Christmas cacti” offered nowadays, on the other hand, are actually Thanksgiving cacti, which bloom from November to February and hence go unrecognized as Christmas cacti. See our post on the different types of holiday cacti and how to identify them apart for more information.
Note: On this page, we use the word “Christmas cactus” to refer to all three of these species because it is the most generally used term and our care advice applies to all of them!
Is Christmas cactus a cactus or succulent?
Christmas cactus are succulents that are commonly grown as houseplants and are a popular holiday plant. Christmas cactuses are easy to find in mid-fall in garden centers and retailers, and their name comes from the time of year they bloom. They do require specific care to induce blooming, but they are otherwise extremely simple to maintain.
Why is it called a Christmas cactus?
The origin of the Christmas cactus is entrenched in hot, tropical conditions in Brazil, adding to the mystery. Christmas cacti are a Schlumbergera family plant that blooms during the Christmas season in the Northern Hemisphere. They flower in April to May in their native location, and the popular name has no meaning. Crab cactus is the name given to them in Europe because of its clawed limbs.
Schlumbergera is divided into six species. Several of these are labeled as “holiday” cactus in commercial production. The Thanksgiving and Christmas cactus plants are named for the fact that they bloom from September to February and are forced to bloom and sold as gift plants during the Thanksgiving and Christmas seasons. The genus name honors Frederic Schlumberger, a French exotic plant species collector. Allen Cunningham discovered the group of holiday cactus in the early 1800s, and by the 1900s, there were multiple hybrids.
What is special about Christmas cactus?
While poinsettias remain the most popular Christmas holiday gift, Christmas cactus (Schlumbergera bridgesii) is also a popular choice. Since the 1800s, Christmas Cacti have been kept as a festive plant. The original Christmas cactus was created by French botanist Charles Lemaire and named after Frédéric Schlumberger, a French horticulture collector. Although Schlumbergera is the true botanical name, they are more commonly referred to as Zygocactus, which was its previous name. The original hybrids blossomed over the Christmas season and sported cherry-red blossoms.
In the year 1819, the forerunners of today’s Christmas cactus were discovered in southeast Brazil. Schlumbergera truncata, the first to be discovered, blooms in October and November and is now known as the “Thanksgiving cactus.” Another, the Schlumbergera russelliana, was found in 1837 and is known as the “Easter cactus” because it blooms between February and April. The first “Christmas Cactus” was a cross between these two. Aside from blossoming at different times, these plants have somewhat distinct leaves. In contrast to Thanksgiving cactus, which have sharp teeth on the margins, Christmas cacti have flattened leaves with rounded teeth on the margins. The leaf joints of Easter cacti have pointy teeth and fibrous hairs.
There are around 300 hybrid types in various hues and combinations of white, pink, red, fuchsia, and less commonly orange and yellow. This plant belongs to a group of epiphytic cacti native to the South American rainforests, and it blooms in the winter. The plant isn’t a genuine cactus, and it’s not as drought-resistant as its name suggests. It is, however, a succulent plant that can store a significant amount of water in its leaves.
Christmas cacti aren’t only popular holiday gift plants; they’re also a source of heated discussion among gardeners. They can and do flourish for many years if properly cared for. Plants that are 40 or 50 years old are not uncommon to outlive their owners. Grandmother’s plant or Aunt Mary’s Christmas Cactus are two examples of plants that are frequently passed down to the next generation. During the yearly flowering phase, these long-lived plants will produce what appears to be bark and grow to be several feet tall with hundreds of blooms.
There appears to be a lot of misunderstanding about how to care for, maintain, and, most importantly, how to get these unusual tropical cacti to bloom again. The cultural prerequisites for all of the holiday cactus are the same. Cactus are known for their heat tolerance, however in lower temperatures, Christmas cacti will preserve their blossoms longer. The Christmas cactus prefers humid conditions, which are not often present in homes. Place the pot with the drip pan on top of a small container filled with pebbles to increase humidity for your cactus. Pour water over the pebbles, but not so much that the water rises above the top layer of stones. As the water evaporates, the humidity around the cactus rises. Keep the plant in a brightly lit area away from drafts caused by heat vents, fireplaces, or other hot air sources. Flower buds can be knocked off the plant by drafts and temperature fluctuations before they have a chance to open.
Because the Christmas cactus is a tropical plant, if the soil becomes too dry, it may shed bloom buds. Drought stress causes the plants to wilt. When the top inch or two of soil seems dry to the touch, water liberally. The amount of time between watering episodes is affected by air temperature, light, growth rate, and relative humidity.
Although the plant does not require fertilization while in bloom, most gardeners like the challenge of retaining the plant after the holidays in order to re-bloom the following year. Use a blooming houseplant fertilizer and follow the package guidelines for how much and how often to feed while the plants are actively growing.
While the Christmas cactus can adapt to low light, plants that have been exposed to higher light intensities produce more flowers. Indoors, place your plants in a bright spot. In the summer, you can bring your plants outside, but make sure they’re in a shady or semi-shady spot. If leaves are exposed to too much light, they may turn crimson. Overexposure to direct sunlight can cause the leaves to scorch or become limp. When it’s time to bring the plants back inside in the fall, gradually increase the number of hours they spend indoors each day to acclimate them to life indoors.
If your plant is constantly drying out and/or wilting, it’s time to repot it into a little larger container. Christmas cacti flower best when they’re confined to a small pot; however, don’t go too big with the pot size.
Christmas cactus require well-drained soil. For succulent plants, use a commercially available potting mix or make your own by mixing two parts ordinary potting soil with one part clean sand or vermiculite. After your Christmas cactus has bloomed, prune it to encourage it to branch out. Pinch off a few parts of each stem with your fingers or cut them off with a sharp knife. To grow new plants, these portions can be rooted in damp vermiculite.
The Christmas cactus is a thermo-photoperiodic plant that blooms at different times of the year. The bud’s formation is influenced by a certain mix of day length and temperature. When the length of the day is nearly equal to the length of the night in the Northern Hemisphere, and the temperature is in the region of 50 to 60 degrees F, these plants will begin to bloom. If you give the Christmas cactus extended, unbroken dark periods, about 12 hours each night, it will blossom. Start applying the dark treatments in mid-October to ensure that the plants are fully bloomed by the holidays. You can keep the plants in a dark closet from 8 p.m. to 8 a.m. every night for 6-8 weeks, or until buds appear. Cool temperatures of about 50 to 55 degrees F will also cause Christmas cacti to bloom, obviating the need for the dark treatments. If chilly treatments are started by early November, plants should be blooming in time for the holidays. Happy Holidays and Happy Gardening!!
How do you get a Christmas cactus to bloom?
Thanksgiving cactus, holiday cactus, and crab cactus are all names for the Christmas cactus (Schlumbergera truncata). The leaf-shaped stem segments with curled, sharp teeth or claws around the margins are known as crab claws. The leaf segments of the Easter cactus (Schlumbergera buckleyi) have rounded edges. They all originated in the gloomy, damp forests of southeast Brazil. They’re called epiphytes because they thrive on trees above ground, in places where branches meet and decomposing fallen leaves and mosses collect.
Despite the fact that this plant is called a cactus, the care it requires has little to do with its desert cousins. It’s a cactus that grows in the forest. Its requirements can be traced back to their source. The optimum time to plant a Christmas cactus is when it is warm “I’m stuck in a pot.” This entails keeping it in a small container for as long as possible before transferring it to a little larger pot. They prefer a nutrient-dense organic potting mix and should not be allowed to dry out. When the plant is blossoming, increase the amount of water it receives. They enjoy indirect light that is bright. As the plants begin to burn, the leaf segments might turn a dark crimson color.
‘The’ “The “secret” to getting your Christmas cactus to bloom in the years after you buy it boils down to two factors: light and temperature. These two are the keys to the kingdom of flowers. Flowers are produced by Christmas cacti in a chilly, short-day cycle. It takes at least eight days of 16 hours of darkness and 8 hours of light every day to start the creation of flower buds. Do not turn on the lights at night, even if only for a brief time, wherever the plant is put. This violates the required dark cycle. It should be around 61 degrees Fahrenheit. Avoid placing the plant in an area where it will be exposed to cold or hot air drafts.
It’s as simple as putting the Christmas cactus on the window sill in a chilly room and not turning on the lights. If the plant was in a brightly lit room, the side closest to the window often grows buds, but the plant’s illuminated side does not. If the plant produces flower buds but then loses them, it’s usually due to either too much or too little water or a lack of air humidity. The good news is that if their temperature and light needs are met, Christmas cacti are reasonably straightforward to re-bloom.
Can Christmas cactus go outside?
A healthy Christmas cactus in full bloom is a terrific present or decoration, even if the poinsettia is still the most popular holiday plant. Christmas cactus is a low-maintenance plant that may be kept indoors all year. The flowers come in a variety of hues, including yellow, salmon, pink, fuchsia, and white, as well as combinations of these colors.
Place a Christmas cactus in a sunny interior spot once it has been moved to its permanent home. The best light comes from a north or east window. If you wish to grow it inside in a south or west window, use thin drapes to shade the plant.
The Christmas cactus is a succulent plant with leaves that can store a significant amount of water. It is not, however, as drought tolerant as you might imagine. When the top half of the growing mix seems dry to the touch, water vigorously. The duration of time between waterings depends on the air temperature, amount of light, growth rate, and relative humidity.
Christmas cactus thrives in humid environments. Place the container on a pebble tray. To improve humidity surrounding the plant, keep water in the tray. Continue to look after the plant in this manner until it has finished blooming.
Allow the plant to rest for six weeks after it has finished blooming. Continue watering to keep the soil moist but allow the surface to dry off. Transfer the plant to a new pot or top-dress with fresh growing mix as tender growth appears in the spring. For Christmas cactus, a well-drained potting mix is essential. Succulent plants should be planted in a professionally prepared potting mix. Repotted plants should be done every two to three years or anytime the container becomes too full of roots. Plants that look to be unhealthy can be repotted at any moment. Every 2 to 3 weeks, administer half the recommended rate of a liquid houseplant fertilizer.
In the summer, you can transfer your Christmas cactus outside, but it should be kept in a partially to fully shaded area. The leaves can be burned by direct sunlight. For the summer, some gardeners relocate their plants to the shade of a porch or patio. Water to keep the growing mix moist after it dries on top throughout the heat.
When September arrives, bring the plant inside after making sure there are no insects accompanying it. Most insects that try to catch a ride are frightened away by a trickle of water. Place the Christmas cactus in a bright spot, just as it was before it went on holiday. Flower development necessitates a high level of light intensity.
Water simply enough to keep the plants from wilting as part of your fall maintenance. Before watering, allow the top half of the potting mix to dry out. Don’t forget the water in the pebble tray for humidity. Unless the plant wilts, do not water it during the month of October. In November, you can begin watering again with caution. Branches droop and break as a result of over irrigation. When the growth mix’s surface dries out, water it.
Christmas cactus is easy to grow, but others say it’s tough to get it to bloom again. Cool temperatures are necessary for flowering, even though high temperatures are beneficial during the growing season. Keep the plant between 60 and 65 degrees Fahrenheit from October onwards. Heat vents, fires, and other sources of hot air should be kept away from Christmas cactus. Flower buds will form as long as the temperature stays in this range for six weeks.
If you can’t manage the temperature in this range, you’ll need to give the plant 13 hours of uninterrupted darkness each night starting around October 1st to promote flowering. Each night, place the Christmas cactus in a fully dark room or cover it with a dark cloth or box.
Stop fertilizing and only water enough to keep the leaves from drooping throughout the flower bud production phase, which begins in October. When the top half of the growing mix becomes dry, water it.
Once the buds have formed, keep the Christmas cactus in medium to high light and at room temperature. Water the plant when the top of the growing mix dries up to maintain it equally moist. Fertilize your Christmas cactus using a half-rate liquid houseplant fertilizer every other week. In the next year, best of luck with your Christmas cactus and all of your indoor and outdoor gardening.
Do Christmas cactus have thorns?
When you see blossom buds on your Christmas cactus, take it out of the dark and closer to a bright window. Make sure it isn’t exposed to any drafts, otherwise it will lose its buds due to the cold.
Within a few weeks, the blossoms should begin to open. Each blossom should last at least 6 days, if not longer, and the plant should bloom for another 4 to 6 weeks.
GROWING TIPS
Unlike the desert-loving cacti we’re used to, the Christmas cactus is a tropical rainforest native that need regular watering to stay healthy.
Grow your Christmas cactus as a hanging plant or set it somewhere where it may dangle to stimulate extra stems. Don’t be concerned if you bump up against it. There are no thorns on Christmas cactus plants.
- Although Christmas cacti sitting in a bright, frosty window have been known to bloom extensively, they prefer diffused light. They are extremely versatile when it comes to growing circumstances.
- Water the plant thoroughly and allow any surplus water to drain through the drainage hole. Between waterings, allow the soil to dry almost completely. Never, ever, ever, ever, ever, ever, ever, ever, ever, ever, ever, ever When the leaves start to pucker and shrivel, you know the soil is too dry.
- Humidity: The Christmas cactus requires humidity as well, especially when cultivated in dry, warm environments. You may either spray it or put a tray of pebbles in the water underneath the plant. Do not allow the water to reach the pot’s bottom.
- Fertilizer: Use half the recommended strength of Watters Root & Grow once a month. Withhold this cactus feeding until the buds have set, then resume once the flowers have bloomed.
- The Christmas cactus is unconcerned about the temperature. They prefer temperatures of 70 to 80 degrees Fahrenheit. During the growing season and when setting buds, keep the temperature between 55 and 65 degrees Fahrenheit.
OTHER TIPS
- Avoid drafty windows and doors that are regularly opened. Sudden drafts irritate them, and they will drop their buds or blossoms if they are exposed to them.
- If your Christmas cactus blooms intermittently throughout the year, don’t be shocked. That’s what a cheerful Christmas cactus accomplishes.
- Christmas cacti appear to thrive in a state of neglect. Don’t get too worked up about them.
How long will Christmas cactus live?
With good cause, the Christmas cactus may be found all over throughout the holiday season. It’s a blooming succulent that’s easy to care for, has beautiful blossoms, and may survive for up to 100 years if properly cared for! That’s correct! This plant can last for decades, giving your holidays a splash of color for generations. That’s a fairly good return on investment for a plant as simple and low-maintenance as the Christmas cactus!
Do Christmas cactus flowers close at night?
This holiday season, you might get a Christmas cactus as a gift if you’re lucky. Although this ubiquitous home plant blooms around the holidays, its broad green limbs are lovely all year. It’s a plant worth admiring, with cultivars in a spectrum of colors. If you’re given a Christmas cactus this holiday season, these 10 facts about it will help you care for it.
1. It’s referred to as a “It’s termed a “cactus,” yet it prefers cool temps. Christmas cacti should be kept out of direct sunlight and away from heat sources. According to the Purdue University Extension Service, if a Christmas cactus is solely exposed to cool temperatures, it will bloom for longer. Place your Christmas cactus in a cool, draft-free location away from heaters and fireplaces for optimal results. Cactus blossoms might drop before they open due to extreme temperature swings. 68 degrees F is the ideal temperature for Christmas cacti.
2. To bloom, Christmas cacti require light. Purdue University Extension recommends maintaining your Christmas cactus plants in a sunny spot indoors to ensure long-lasting blooms. If you take them outside during the summer, however, choose a somewhat shaded position because too much direct sunlight might scorch the leaves.
3. The Christmas cactus is a Brazilian native. According to Clemson University Cooperative Extension, these epiphytes (plants that grow on top of other plants without being parasitic) thrive in the Brazilian rain forest, among tree branches. They flourish in humid environments because they are tropical plants.
4. Christmas cacti require rest to maintain their beauty. The Cheyenne Botanic Gardens’ horticulturists recommend placing your Christmas cactus in a room where the lights are never turned on at night. Christmas cacti require 14 hours or more of continuous darkness per day for their bloom buds to set. The plants, however, can endure light at night once the flower buds have set.
5. Unlike the Poinsettia, which is harmful to dogs and cats, Christmas cactus is not. Poisonous to dogs and cats, poinsettia is well-known. The ASPCA, on the other hand, says that if Fido or Fluffy eats a Christmas cactus, she won’t get irritated or vomit like she would if she ate Poinsettia sap.
6. The Christmas cactus has a 20- to 30-year lifespan. Can you imagine giving your children or grandchildren a living, blossoming plant? Christmas cacti, according to the Old Farmer’s Almanac, can live for 20 to 30 years if properly looked for. You may encourage the Christmas cactus to bloom year after year if you start providing lengthy evenings around October 1. Its blooming is also aided by cool nighttime temperatures.
7. Christmas cacti will die if they are overwatered, but they prefer to be misted on a daily basis. Water a Christmas cactus only when the soil is dry to the touch, according to an Oregon State University Extension Service gardener. Instead, horticultural expert and radio personality Walter Reeves, the Georgia Gardener, recommends spraying the Christmas cactus leaves regularly to keep the optimum humidity level surrounding the plant.
Christmas cactus is usually infected by eight illnesses. Experts from Penn State University Extension have created a useful data sheet listing the most common plant diseases that harm Christmas cacti. Basal stem rot, botrytis blight, impatiens necrotic spot virus, phytophthora root rot, and pythium root rot are all on their list.
Pests that commonly infest Christmas cacti include fungus gnats, flower thrips, and root mealybugs. Overwatering is the leading cause of insect infestation in Christmas cacti. Another advised strategy is preventive care, such as removing affected plants. Pesticides are accessible for commercial producers, however they may not be available to amateur gardeners.
10. By the way, that Christmas cactus you’re about to buy is most likely not a Christmas cactus. Surprise! According to the University of Massachusetts Extension Service, “Schlumbergera truncata, sometimes known as Thanksgiving cactus or Zygocactus, is the most common commercial variety of holiday cactus. True Christmas cactus is a 150-year-old interspecific hybrid of Schlumbergera truncata and Schlumbergera russelliana from England. Although it’s a common houseplant, it’s rarely grown commercially.”
What conditions do Christmas cactus like?
Schlumbergera can be found in jungle-like forests connected to trees in their natural habitat. They prefer a semi-shade environment versus the full light of desert-dwelling cacti. A well-lit, but out of direct sunlight, environment with a humid climate would be excellent. Use gravel-filled saucers to place your plants on and keep them moist to improve humidity.
To sustain healthy growth, repot once a year (or at least every two years). This can be done at the end of March, when their growing season begins. To help with drainage, use a regular cactus compost or a loam-based compost like John Innes No 2 with additional leafmould (or peat substitute) and grit. Choose only a slightly larger container for potting on, as they prefer to be tight in a compact pot.
Aftercare
- A time of rest is required after blossoming. Restrict the temperature to 12-15°C (55-59°F) and reduce the watering to only once or twice a week from late January to late March to avoid the compost drying up altogether. Moving to a cooler environment is a simple way to accomplish this.
- Increase the watering and start feeding with a houseplant liquid feed during the growing season, which runs from April to September. Maintain a temperature of 18-20°C (65-69°F) during the growing season if possible.
- They can be placed outside throughout the summer months, once the risk of frost has passed. This promotes flowering and helps to ripen new growth. Keep them in a shady area away from snails.
- With the shorter days and cooler temperatures, flowering buds begin to form around mid-September. With a second resting period, the watering and temperature should be reduced (as before). Increase the temperature to 18-20°C (65-69°F) and begin regular watering just until the flowering buds have formed.
- After that, your plant should bloom and provide you with a stunning display. If there are two resting periods with a reduction in watering and temperature, exact temperatures are not required to encourage flowering.
Do you water a Christmas cactus from the top or bottom?
Remember that Christmas cactus plants demand moist soil rather than the dry dirt preferred by most other succulents. When the top inch or two of soil on a Christmas cactus is dry, water it. Fill the pot saucer with stones and water to just below the tops of the pebbles (the pot should not be sitting directly in water) to assist improve the humidity around your plant. As the water evaporates, the air will become more humid. (See below for watering suggestions if you’re attempting to get your Christmas cactus to rebloom.)