Kalanchoes can be raised to rebloom the next season with proper care. After the plant has finished flowering, move it to a slightly larger pot. Kalanchoes are succulents that thrive in a well-drained, well-aerated potting soil made up of 60% peat moss and 40% perlite. Tall growth and old flower stems should be pruned. In a sunny, warm window, keep well hydrated. After the threat of frost has passed, relocate outside for the summer to a bright, lightly shaded location. Gradually acclimate them to outdoor conditions to avoid burning fragile foliage. Return to the house before the first frost or three months before the ideal bloom time.
Kalanchoes, like poinsettias, need short days (long nights) to form flower buds. Between October 1 and March 1, natural day lengths allow flower buds to form. Keep the plant in a room with no lights on during the naturally dark hours, or alter the length of the day by putting it in a closet in the late afternoons and then bringing it out to a high light environment each morning. Flower buds need about six weeks of normal winter day lengths to form. Kalanchoe will have a 14 to 16-hour night period due to natural winter day lengths. Temperatures exceeding 80 degrees Fahrenheit during the lengthy night period can cause a “heat delay,” preventing bloom development. Day length is no longer important after the flower buds grow large enough to be seen above the foliage. Plants can be placed in any position at this time, independent of night lighting. In early October, plants exposed to naturally short day durations should begin flowering by January (i.e. approximately 12 weeks from start of long nights).
Does kalanchoe need cactus soil?
Soil. Outdoors, kalanchoe plants thrive in sandy, well-drained soil. Indoor plants should be potted in a moisture-wicking mix, such as 50 percent potting soil and 50 percent cactus mix, or 60 percent peat moss and 40 percent perlite.
How do you repot a kalanchoe?
Take the kalanchoe plant out of its present container and place it in the larger one. Place the plant so that the crown is slightly below the container’s top. Fill the container with potting soil up to the top of the roots and cover the roots up to the crown of the plant. With your fingertips, lightly compact the earth.
Water the newly repotted kalanchoe plant as soon as possible after transplanting it, uniformly moistening the soil.
How do you prepare soil for kalanchoe?
On a small, upright plant approximately 6-12 inches tall, kalanchoe flower heads bloom in vibrant oranges, pinks, yellow, red, and white. The flowers last for months, while the green plants look good all year.
The most popular kalanchoe variety is K. blossfeldana, although there are many more to select from, including pendant (hanging) variations and nonflowering cultivars grown for their distinctive leaf. Growing conditions are the same for all kalanchoes.
Kalanchoe Growing Tips
Kalanchoes are low-maintenance plants that thrive in low-humidity environments like winter homes. Choose Kalanchoe plants with a lot of unopened flower buds instead of ones that are fully bloomed, and be sure to offer them:
Kalanches require a lot of light in the winter, particularly from a south-facing window, and intense indirect light (from an east/west window) in the summer. It’s likely that your Kalanchoe plant isn’t getting enough light if it’s lanky and thin.
Soil: Kalanchoe plants thrive in a well-draining cactus and succulent potting mix, or add plenty of perlite or sand to promote drainage.
Temperature: Kalanchoes perform well in average household temperatures, although drafts should be avoided. Keep your kalanchoe above 50 degrees Fahrenheit.
Overwatering is the most common cause of kalanchoe death! Between waterings, let your kalanchoe dry out. Then, after properly watering until it runs out the bottom, empty the drainage tray. It’s never a good idea to leave the plant submerged in water.
Fertilizer: Feed your kalanchoe with a balanced organic fertilizer every few weeks while it is blooming.
Pots: Kalanchoes grow best in clay pots with a drainage tray that can be emptied. They’re little plants that don’t need to be repotted too often.
Summer care: In the summer, you can bring your kalanchoe outside, but make sure it is protected from the rain.
Kalanchoes can be propagated easily from stem or leaf cuttings. Plantlets are produced by some kinds, which can be removed and potted.
To keep your kalanchoe looking tidy, remove any wasted blossoms. Dust can also be removed by wiping or lightly spraying them.
How to Make Kalanchoe Bloom
Many people treat kalanchoes as annuals, discarding them once they’ve bloomed. It takes some discipline to get them to bloom again, but once you get the hang of it, you’ll be able to make your kalanchoes bloom on demand! Here are some suggestions for re-blooming your kalanchoe:
Flowering is Light-Dependent: Kalanchoes are photoperiodic, meaning they bloom in reaction to the length of the day. They blossom in the early springtime. Six weeks of simulated winter illumination conditions are required to force your plant to set bloom buds.
Put your plant in complete darkness for 14 hours a day and brilliant light for 10 hours a day for six weeks to simulate night. To obtain complete darkness, you can bring it in and out of a closet or use a cover. When you observe blossom buds opening after six weeks or so, you can move your plant back into regular light conditions and continue watering. Check out our articles on how to grow poinsettias and Christmas cactus for more information on photoperiodic blooming.
Planting and repotting
This plant grows best in mild areas and should be grown indoors if the weather is expected to freeze.
- If you bought your kalanchoe while it wasn’t flowering, you can repot it right after you bought it.
- After that, repotting in the fall after the blooming should help promote new leaf sprouting at the end of the winter.
Million-babies kalanchoe
Some kalanchoe cultivars have small buds that develop all the way around the edges of their leaves.
These are little “pups” that fall off and take root, each time producing a new plant.
- Each of these is a clone of the mother plant, and they will all have the same traits.
Can I plant kalanchoe in the ground?
Is it possible to leave my plants in the same pot outside, or do I need to move them?
Place your Kalancho in a large pot or container on the porch, patio, or garden, together with other Kalanchos. You can also plant your Kalancho in garden soil, but wait until the ground is no longer frozen before doing so. It would be wise to wait until the middle of May to be sure.
Absolutely! A area that receives a lot of light will be ideal. Even in direct sunshine, the Kalancho thrives.
It will produce more flowers outside than it does indoors. It also doesn’t require a lot of water: a moderately moist soil is ideal. It will suffice to apply a small amount of fertilizer once a month.
It’s pleasant and comfortable during the day, but it’s chilly at night. What should I do with the Kalanchoes I have growing on my patio?
If the temperature drops below 10 degrees at night in early spring, bring the plants indoors. Beginning in mid-May, you can rest assured that they can be left outside at night. Just remember to bring them inside before the first ground frost to continue enjoying them!
Why is kalanchoe called Widow’s-thrill?
Kalanchoe blossfeldiana is known by the common names Kalanchoe, Widow’s-thrill, and Flaming Katy, all of which are derived from its vivid and vibrant blooms.
Do kalanchoe plants like to be root bound?
When the pots are too tiny for the plants to grow and spread, they will become root-bound. If you choose a container that is too tiny for the plants, they will quickly get root-bound and begin to outgrow it. The roots will have plenty of room to grow and spread in a large container.
Why do kalanchoe leaves turn yellow?
Zinc insufficiency is a problem for Kalanchoe blossfeldiana, which is exacerbated by excessive phosphorus levels in the soil. Yellowing of leaves between veins, as well as curling, withering, and leaf deformation, are all signs of zinc deficiency. Zinc deficiency in Kalanchoe can result in fasciation, which is a highly branching, flattened stem. Kalanchoe requires a soil pH of 6.0 to 6.5 or a rich growing medium of equal parts peat and perlite to reduce the risk of zinc deficiency.
What is perlite soil?
Perlite is a naturally occurring mineral used to increase aeration, water retention, and drainage in garden soil. It resembles little white Styrofoam balls and is typically found in seed-starting mixes and potting soil. Perlite is commonly used by gardeners to increase water drainage and aeration in vegetable gardens and flower beds. Perlite is sold in various sizes in bags and can be found online and in garden stores. Its usage in certified organic agriculture is permitted by the National Organic Standards Board.
How is Perlite Soil Made
Natural perlite is heated to roughly 1600 degrees F to make it into the lightweight material used in gardening. Perlite “pops” and expands to around 12 times its original size, transforming into the familiar-looking, light-weight white balls.