Skip to content 
If you have a Kalanchoe blossfeldiana covered in bright flowers, you have one of the easiest flowering succulents to grow indoors. The harder part often comes after the first flowers fade. With the right light, watering, soil, and a proper dark period, you can keep the plant healthy and encourage it to bloom again.
Quick Answer
Kalanchoe blossfeldiana needs bright light, fast-draining soil, and careful watering. Let the soil dry between waterings, then water well and let excess water drain. To encourage reblooming, give the plant about 14 hours of complete darkness each night for at least six weeks while keeping it healthy during the day.
What Is Kalanchoe blossfeldiana?
Kalanchoe blossfeldiana is a flowering succulent from Madagascar. It belongs to the Crassulaceae family and is widely grown as a houseplant because of its thick green leaves and long-lasting flower clusters.
You may know it by several common names, including florist Kalanchoe, Flaming Katy, Christmas Kalanchoe, and Madagascar Widow’s Thrill.
The plant has thick, oval leaves with scalloped edges. Small flowers grow in dense clusters above the leaves. Flower colors can include red, pink, orange, yellow, and white. Both single- and double-flowered forms are available.
I like Kalanchoe blossfeldiana as an indoor plant because it does not need daily care. Its fleshy leaves store water, so it handles short dry periods much better than many common houseplants.
The main challenge is getting it to flower again. A plant bought in full bloom may need a change in its light cycle before it sets new flower buds.
Kalanchoe blossfeldiana Care at a Glance
| Care need | What Kalanchoe blossfeldiana needs |
| Light | Bright light |
| Water | Let the soil dry between waterings |
| Soil | Fast-draining succulent or cactus mix |
| Pot | Container with a drainage hole |
| Temperature | Warm indoor conditions; protect from frost |
| Humidity | Normal indoor humidity is usually fine |
| Fertilizer | Light feeding during active growth |
| Pruning | Remove spent flowers and weak growth |
| Flowering | Long, uninterrupted nights help trigger buds |
| Propagation | Stem or leaf cuttings |
The exact watering frequency can change based on pot size, soil, temperature, and light. I prefer checking the soil instead of following a fixed calendar.
How to Care for Kalanchoe blossfeldiana
Give Kalanchoe Bright Light
Light is one of the biggest factors in healthy Kalanchoe growth.
Place your Kalanchoe blossfeldiana near a bright window where it gets plenty of natural light. Bright indirect light works well indoors, while some direct sun can also be useful if the plant has been slowly introduced to it. Strong afternoon sun through hot glass can scorch the leaves.
A plant that gets too little light may start to look stretched. The stems become longer, the spaces between leaves increase, and flowering may become poor.
Too much harsh sun can cause brown, dry, or scorched areas on the leaves.
If I see weak or stretched growth, I check the light before changing the watering routine. A brighter location often makes a bigger difference than adding more fertilizer.
How to Water Kalanchoe blossfeldiana
Kalanchoe blossfeldiana is a succulent, so it stores water in its thick leaves. It does not like sitting in wet soil for long periods.
Let the soil dry between waterings. When the soil is dry, water thoroughly until some water runs from the drainage hole.
Then empty any water that collects in the saucer or outer container.
I prefer this soak-and-dry method over giving the plant a small amount of water every few days. Frequent light watering can leave parts of the soil damp for too long.
During cooler or darker months, the plant usually needs less water. Check the soil before watering rather than using the same schedule all year.
Use Fast-Draining Soil
A good Kalanchoe soil mix should drain water quickly.
A cactus or succulent potting mix is a simple choice. You can also improve a regular potting mix with a material such as perlite to increase drainage.
The goal is to give the roots access to moisture without keeping them in wet soil.
Heavy, poorly draining soil can increase the risk of root and stem rot, especially when the plant receives little light.
Choose a Pot With Drainage
The pot should have at least one drainage hole.
This lets extra water escape after watering. A decorative container without drainage can trap water around the roots, even if you are careful with watering.
I also avoid moving a small Kalanchoe into a very large pot. A large amount of unused wet soil can take longer to dry.
Terracotta can be useful because it allows some moisture to leave through the sides, but a plastic pot can work well too. Good drainage matters more than the pot material.
Keep the Temperature Warm
Kalanchoe blossfeldiana prefers warm conditions and does not tolerate frost.
For indoor growing, normal comfortable room temperatures usually work well. Cooler nights can help extend the life of open flowers, but the plant should not be exposed to freezing temperatures.
If you grow it outside in a warm climate, bring it indoors before frost or cold weather becomes a problem.
Does Kalanchoe Need High Humidity?
Usually, no.
Kalanchoe blossfeldiana can grow well in normal indoor humidity. I would focus more on good airflow and proper watering than trying to create a very humid environment.
Poor airflow combined with damp conditions can increase the risk of fungal problems such as powdery mildew.
Should You Fertilize Kalanchoe blossfeldiana?
Kalanchoe does not need heavy feeding.
During active growth, you can use a balanced houseplant fertilizer at a light rate. Avoid giving large amounts of fertilizer in an attempt to force more flowers.
If the plant is already healthy and growing well, more fertilizer is not always better.
Kalanchoe blossfeldiana Flowers
The flowers are the main reason florist Kalanchoe is so popular.
Small flowers grow in large clusters above the fleshy leaves. Depending on the cultivar, flowers can be red, pink, orange, yellow, or white. Some varieties have single flowers, while others have many more petals and a fuller appearance.
Modern double-flowered forms are often sold as Calandiva varieties. They are closely connected to Kalanchoe blossfeldiana but have a different flower form.
When you buy a florist Kalanchoe, it may already have many open flowers because commercial growers can control the plant’s flowering conditions.
That is also why the plant may stop producing flowers after you bring it home. The home environment may not provide the same light cycle used to prepare the plant for sale.
How to Get Kalanchoe blossfeldiana to Rebloom
This is the part many plant owners miss.
Kalanchoe blossfeldiana is a short-day plant. In simple terms, it needs long periods of darkness to start forming flower buds. The dark period is often more important than simply giving it more light during the day.
With good care, you can prepare a healthy plant for another flowering cycle.
Step 1: Keep the Plant Healthy After Flowering
Once the first flowers fade, continue normal Kalanchoe care.
Give the plant bright daytime light and avoid keeping the soil constantly wet. Remove dead flowers and keep the plant growing strong.
I would not start a reblooming routine with a plant that is already weak, badly overwatered, or suffering from pests.
Fix those problems first.
Step 2: Remove the Spent Flowers
Cut off faded flower clusters once they are past their best.
Deadheading keeps the plant looking neat and allows you to remove old flower stems.
You can also trim weak or stretched growth if needed. Avoid cutting away large amounts of healthy foliage at once.
Step 3: Give It Bright Light During the Day
The plant still needs good light while it is preparing to flower.
Place it in a bright location during the daytime. Healthy leaves give the plant the energy it needs for new growth and future flowers.
A dark room all day is not a good way to trigger flowering.
The goal is bright days and long nights.
Step 4: Give It About 14 Hours of Complete Darkness
This is the key part of the reblooming process.
During fall, give Kalanchoe blossfeldiana about 14 hours of complete darkness each night for at least six weeks. During the remaining hours, give it bright light.
For example, you could place the plant in complete darkness in the evening and return it to its bright daytime location each morning.
A dark closet can work if it stays completely dark during the required period.
A light-tight box can also be used, as long as it does not restrict airflow or damage the plant.
Step 5: Keep the Dark Period Consistent
This part takes patience.
A room light, lamp, television, or other light source can interrupt the dark period. The plant needs a consistent night cycle while it is preparing to form buds.
I would treat the dark period like a routine rather than moving the plant around at random.
Once flower buds begin to form, you can return the plant to its normal bright location and continue regular care.
Why Is My Kalanchoe blossfeldiana Not Reblooming?
Several things can prevent flowering.
It Gets Light at Night
Even though the plant needs bright light during the day, nighttime light can interfere with the long-dark period needed for bud formation.
A nearby lamp may be enough to disrupt the routine.
It Does Not Get Enough Daytime Light
A plant can stay alive in low light but still fail to flower well.
If the stems are long and weak, move the plant to a brighter location.
The Dark Period Is Too Short
The reblooming process requires a long, consistent night. Shortening the dark period every few days can prevent the plant from getting the signal it needs.
The Plant Is Weak
A plant with root problems, pests, poor light, or severe watering issues may struggle to flower.
Get the basic Kalanchoe care right first.
The Routine Is Interrupted
If the plant moves between different rooms or receives light at random times, the flowering cycle becomes harder to control.
Consistency matters during this stage.
How to Prune Kalanchoe blossfeldiana
Kalanchoe blossfeldiana does not need heavy pruning.
I would focus on removing:
- Faded flower clusters
- Dead leaves
- Weak stems
- Very long or awkward growth
Use clean, sharp scissors or pruning shears.
Cut just above a healthy leaf section when removing a spent flower stem. This helps keep the plant compact.
If your Kalanchoe has become leggy because of poor light, pruning can improve its shape, but you should also fix the light problem. Otherwise, new growth may become stretched again.
How to Propagate Kalanchoe blossfeldiana
Kalanchoe blossfeldiana can be propagated from stem or leaf cuttings.
Stem Cutting Method
Choose a healthy stem and take a clean cutting.
Let the cut end dry for a short period so the wound can callus. Then place the cutting in a suitable well-draining growing mix.
Keep the mix lightly managed rather than constantly wet.
Once roots develop and new growth starts, the young plant can be moved into a regular succulent growing setup.
Stem propagation is a practical choice if you want a new plant that keeps the same basic characteristics as the parent.
Leaf Cuttings
Healthy leaves can also be used for propagation.
This method can take more patience, so I prefer stem cuttings when I want a simpler route to a new Kalanchoe.
Kalanchoe blossfeldiana vs Calandiva
Calandiva is closely associated with Kalanchoe blossfeldiana and is best known for its fuller double flowers.
| Feature | Kalanchoe blossfeldiana | Calandiva |
| Plant type | Flowering succulent | Flowering Kalanchoe group |
| Leaves | Thick and fleshy | Thick and fleshy |
| Flowers | Single or double forms | Known for double flowers |
| Flower shape | Often simpler | Fuller and more layered |
| Basic care | Bright light, dry soil between watering | Similar care |
| Main difference | Species and many cultivars | Double-flowered form |
The care needs are very similar, so I would not treat them as completely different houseplants.
Common Kalanchoe blossfeldiana Problems
Yellow Leaves
Yellow leaves can have several causes, but overwatering is one of the first things I would check.
Look at the soil, drainage, and light. If the soil stays wet for a long time, adjust the watering routine and make sure the container drains properly.
Soft or Mushy Leaves
Soft leaves can point to excess moisture, especially when the soil stays wet.
Check the roots and stem if the problem continues. Root or stem rot can develop when Kalanchoe receives too much water or grows in poorly draining soil.
Leggy Growth
Long, thin stems with large spaces between leaves usually suggest that the plant needs more light.
Move it to a brighter location and rotate the pot from time to time so growth stays more even.
Brown or Scorched Leaves
Brown, dry patches can appear when the plant receives harsh direct sunlight, especially after moving suddenly from a lower-light location.
Move it away from intense afternoon sun and let it adjust to brighter conditions more gradually.
Flowers Falling Early
Flowers can fade naturally as the bloom period ends.
If flowers are dropping much earlier than expected, check light, temperature, watering, and sudden changes in the plant’s location.
Pests
Kalanchoe can attract pests such as aphids, mealybugs, and spider mites.
Check under leaves and around stems when you notice sticky residue, small insects, webbing, or unusual leaf damage.
Treat pest problems early and keep affected plants away from other houseplants until the problem is under control.
Powdery Mildew
Poor airflow and damp conditions can increase the risk of powdery mildew.
Give the plant enough space around its leaves and avoid keeping the foliage constantly wet.
Can Kalanchoe blossfeldiana Grow Outdoors?
Yes, but climate matters.
Kalanchoe blossfeldiana is sensitive to frost. In warm climates, it can grow outdoors in containers, patios, rock gardens, or suitable garden areas. In colder areas, it is better treated as an indoor plant and protected from cold weather.
If you move an indoor Kalanchoe outside, do it gradually. A sudden change from indoor light to strong outdoor sun can damage the leaves.
Is Kalanchoe blossfeldiana Toxic?
Kalanchoe can be harmful if eaten, so keep the plant away from children and pets.
Dogs and cats should not be allowed to chew the leaves or flowers. If a pet or child has eaten part of the plant, seek appropriate professional advice rather than guessing about the risk.
Final Take
Kalanchoe blossfeldiana is easy to keep healthy once you treat it like the succulent it is. Give it bright light, fast-draining soil, careful watering, and good drainage.
If your goal is more than keeping the plant alive, focus on its flowering cycle. After the first bloom fades, healthy growth followed by long, uninterrupted nights can give your florist Kalanchoe the conditions it needs to flower again.
Kalanchoe blossfeldiana FAQs
Is Kalanchoe blossfeldiana the same as florist Kalanchoe?
Yes. Florist Kalanchoe is a common name used for Kalanchoe blossfeldiana, the flowering succulent widely sold as an indoor ornamental plant. Flaming Katy and Christmas Kalanchoe are also common names associated with it.
How long can Kalanchoe blossfeldiana live?
With suitable care, it can be kept as a long-term houseplant rather than treated as a plant that must be discarded after flowering.
The main challenge is maintaining healthy growth and giving it the right light cycle for another bloom.
Can Kalanchoe blossfeldiana flower more than once?
Yes. A healthy plant can be encouraged to flower again when it receives the right combination of daytime light and long, uninterrupted nights.
Why does my Kalanchoe grow leaves but no flowers?
The plant may be receiving enough light to grow but not the right dark period to trigger flower buds.
Check whether artificial light reaches the plant at night. Also make sure the plant receives strong daytime light and remains healthy.
Can Kalanchoe blossfeldiana grow outside?
It can grow outdoors in warm, frost-free climates. In colder areas, bring it indoors before frost or cold temperatures become a problem.
Can you grow Kalanchoe blossfeldiana from a leaf?
Yes, leaf cuttings can be used for propagation. Stem cuttings are another option and can be a simple way to make new plants.
