Christmas cacti are usually trouble-free succulent plants, but if the leaves of your Christmas cactus are red or purple instead of green, or if the edges of your Christmas cactus leaves turn purple, something is wrong. Learn about the causes and solutions for reddish-purple Christmas cactus leaves by reading on.
Why is my cactus turning purple?
Cacti develop a purple tint as a result of cool, dry weather. The plant’s response to environmental stress is to turn purple. When stressed, succulents, agave, and aloe kinds turn scarlet, burgundy, or purple.
How do you revive a purple 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.
Why have the leaves on my Christmas cactus turned red?
A magnesium deficiency, which is a common illness in Christmas cacti, is characterized by red or purple-tinged foliage and wilting. It happens primarily during the winter months, when feeding and watering are restricted and the plant’s nutrient uptake is slowed by freezing temperatures. Winter temperatures of 55 to 65 degrees Fahrenheit are ideal for the cactus. Epsom salts can be used to treat a magnesium deficit. 8 heaping tablespoons Epsom salts dissolved in 2 1/2 gallons water, plus 1 to 2 drops dishwashing liquid Fill a spray bottle halfway with the mixture and spritz the tops and undersides of the foliage. Reapply the mixture every two weeks until the foliage regains its natural color.
What does a dying Christmas cactus look like?
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.
Why is my cactus changing color?
Before we get into the more serious indicators of impending death, it’s important to understand some of the early warning signs so you can address the problem as soon as possible. In this section, we’ll look at some of the warning signals that should worry you but aren’t necessarily symptoms of impending death.
Some plants change color
It’s worth noting that when cacti plants are anxious or upset, they change color. However, you should pay close attention to the color shift because it could indicate good health.
For example, if your plant is exposed to a lot of sunshine, it may turn reddish, which isn’t a huge worry.
Sadly, if your plant begins to turn yellow or brown, you should be concerned.
Corking
Corking is another typical symptom that gardeners misinterpret as a disease. Corking is a natural process that occurs as a plant matures. Your plant will acquire a hard, brown skin where its green outer covering used to be during this stage.
Browning normally begins at the bottom of the plant and progresses up the stem. Corked areas become hardened and develop a light brown or dark grayish color. Your cactus is merely aging in this scenario, not dying.
Withering
Withering is another typical symptom that people mistake for death. It’s an indication of dehydration if you notice your plant has shed some pads and some portions are drying out. The only thing you need to do in this scenario is water it.
When faced with protracted periods of drought, most cacti species preserve the younger sections while allowing the older ones to dry out and fall off. There’s no need to be concerned; this is not a fatal condition, and your plant will quickly recover if you water it lightly and consistently.
Why is my Christmas cactus pink?
Here are some of the various concerns that Christmas cactuses may have that aren’t disease-related. These issues are usually readily rectified by making simple environmental changes or taking proper care of your Christmas cactuses.
LIMP OR WILTING CHRISTMAS CACTUS
One of three problems could be causing your Christmas cactus to wilt or appear very limp. You’ll want to find out what’s wrong as soon as possible, since if you don’t, it could turn into root or stem rot.
It’s possible that the soil is too damp, too dry, or too rootbound. Feel the dirt with your finger to about an inch deep and apply the elimination process to figure out what’s wrong.
Solution: If the soil is only slightly damp, wait a few minutes before watering it again. To avoid root or stem rot, remove it from the saturated soil and repot it into dryer soil as away if the soil is saturated.
If the cactus does not improve after watering, it may be root-bound. Holiday cacti enjoy being root bound, but they eventually become too constrained to remain healthy. If your plant brightens up for a few days and then wilts again, or if it doesn’t respond to watering, consider repotting it into a new pot with a larger drainage hole and cactus soil.
CHRISTMAS CACTUS LEAVES TURNING RED OR PINK
If your Christmas cactus’ leaves are becoming red or pink, it’s either getting too much sun or not getting enough water.
Solution: Move your Christmas cactus away from a window that receives direct sunlight during the day. They can tolerate some direct sunlight, but prefer indirect light. Check the soil as well, and if it’s dry to a depth of one inch, water it more often. Water your Christmas cactus when the soil seems dry to the touch.
Why are my leaves turning purple?
It’s most likely due to a phosphorus deficit if you discover a plant with purple leaves instead of the usual green. Phosphorus (P) is required by all plants for the production of energy, carbohydrates, and nucleic acids.
Plants that are young are more prone to show signs of phosphorus insufficiency than plants that are older. Some plants may suffer a phosphorus shortage if the soil is chilly early in the growing season.
With insufficient phosphorus, the undersides of marigold and tomato plant leaves turn purple, while other plants get stunted or turn a dull, dark-green tint.
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 often should I water my 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!
Why is my Easter cactus turning purple?
An oversupply of light may elicit a protective response to ultraviolet (UV) radiation when a plant is genetically wired to thrive in the sun-dappled shadow of a rainforest canopy.
Instead of producing chlorophyll-rich green stems, the life-threatening intense light causes UV-protective phenolic chemicals known as anthocyanins to take center stage with their purple colour.
If a Schlumbergera is exposed to too much sunshine, it can scorch, causing irreversible damage to stem tissue. This injury hinders it from receiving sunlight, putting photosynthesis, the process of converting sunlight into food, in jeopardy.
Choose a place with indirect or filtered sunlight, preferably towards north or west, to avoid this problem.