- Use Miracle-Gro Cactus, Palm & Citrus Potting Mix to grow your Christmas cactus.
- To enhance blooming, give your Christmas cactus 6 weeks of increased darkness and cooler temperatures.
- To make new Christmas cacti, root the stem parts you trimmed off the plant.
How often should you water Christmas cactus when in bloom?
- 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!
Should I water my Christmas cactus while it’s blooming?
- Watering: Mist your plant frequently while it is blooming to keep the soil uniformly moist.
- Light: For moderate light and some direct sun, place the cactus in an east-facing window.
- Fertilize every two weeks once buds have formed with a high-potassium fertilizer.
How do you water a flowering cactus?
When plants are growing and flowering in the summer, water moderately, but sparingly at other times. Overwatering will cause the flower buds to fall off.
Because Christmas cacti prefer a moist environment, set the pot on a tray of stones or hydroleca.
Allow the plant to rest after flowering is over by ceasing to feed it and reducing watering so that the compost does not dry up completely. Keep the plants at a colder temperature, around 12-15°C (55-60°F).
When new growth arises in March/April, either repot but only if they have outgrown their pot and need to be moved to a larger pot or topdress with fresh compost and begin watering.
Keep plants moist during their main growing season, which runs from April to September, and give them a high-potash houseplant liquid feed on a regular basis. Keep the temperature between 18 and 21 degrees Celsius (65 and 70 degrees Fahrenheit).
If the flower buds begin to form, move the plant as little as possible to avoid the buds dropping.
Problems
If properly tended for, Christmas cacti are virtually trouble-free. However, the following is a common occurrence.
Drop of a flower bud Widely varying temperatures hot during the day, freezing at night are the most common cause, although overwatering is also a typical problem.
Non-flowering Because flower buds form in the autumn, this is frequently owing to ‘non-autumnal’ conditions, such as temperatures not dropping low enough and/or day length not shortening, which could be due to putting the plant near an artificial light source.
Should I water a blooming cactus?
Water is required for active growth, including blooms. Most cactuses in their natural habitat receive the majority of their annual water during the summer monsoon rains. Never use automatic irrigation on a cactus or water it during wet periods. Only water your cactus if natural rainfall isn’t enough to keep it looking well. Always consider the temperature, humidity, and weather prediction. By hand, inspect the soil and err on the side of caution. Between waterings, let the soil to totally dry. This prevents root rot, crown rot, and fungal illnesses caused by insufficient watering.
Should I water my 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.)
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.
Should I remove dead flowers from Christmas cactus?
Deadhead all wasted blooms to keep your cacti looking their best throughout and after the Christmas season. The plant will also continue to blossom as a result of this. You can continue to enjoy your cacti after Christmas is past until it stops producing flowers. But don’t let it go after it’s done! With or without blossoms, these cacti make lovely houseplants. And there’s a good possibility it’ll blossom for you again next year, and sometimes even in the middle of the year. (Bonus!)
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.
What do you do after Christmas cactus blooms?
Fertilize the plant every month after it has bloomed, starting when you see fresh growth at the end of winter or the beginnings of spring. Feed a Christmas cactus with a 50 percent strength 20-20-20 or 10-10-10 plant food diluted with water. Apply a monthly application of a magnesium sulfate solution at a ratio of 1 teaspoon to 1 gallon of water to the plant, but not the same week you apply the plant food.