What to do when Kalanchoe leaves turn yellow? Cause analysis and solutions
Kalanchoe (Kalanchoe blossfeldiana) has a long flowering period, many flower colors, is easy to grow, and easy to propagate, so it is quite widely popular. However, during the process of growing Kalanchoe, yellowing leaves, soft leaves, and leaf drop often occur. Below, let us take a look at what to do when these situations arise!
What to do when Kalanchoe leaves become soft?
It is usually caused by long-term lack of light or insufficient light, insufficient watering, or long-term waterlogging. Light should be increased; apart from appropriate shading in summer, at other times it must receive good to sufficient light. Watering should alternate between dry and wet, and never be kept waterlogged or drought-stressed for long periods.
What to do when Kalanchoe drops its leaves?
1. Insufficient light: If Kalanchoe does not receive enough light during routine care, not only will the branches be thin, weak, and elongated, with thin leaves and an unattractive plant shape, but the number of flowers will also decrease, the flower colors will be less vivid, and it will cause a large number of leaves to drop, losing its ornamental value.
2. Dark environment: A too-dark growing environment can also easily cause leaf drop. Even a plant that has already bloomed, if placed in a shaded spot, will have duller flower colors and then the flowers will drop and wither.
What to do when Kalanchoe leaves turn yellow?
1. Overwatering: If Kalanchoe is watered too much, it will cause the leaves to turn yellow, shown by old leaves having no obvious change while young leaves turn yellow. In this case, water should be withheld immediately.
2. Excessive drought: Caused by lack of water and drought. Its characteristic is that the old leaves turn yellow first from the bottom upward. If the water shortage lasts a little longer, the whole plant's leaves will turn yellow and it may even die. It should be watered promptly.
3. Overfertilizing: Caused by fertilizing too frequently or at too high a concentration. Its characteristic is that the young leaves are thick, glossy, and uneven. Fertilizing should be stopped, and the soil should be cultivated and watered.
4. Insufficient fertilizing: Caused by insufficient fertilizer, too low a fertilizing concentration, and too long an interval between fertilizing. Its characteristic is that the young leaves and tender stems turn yellow first. If this phenomenon is seen and fertilizer is not applied in time, it can also cause the whole plant's leaves to turn yellow and even die. Note: For flowers lacking fertilizer, never apply a large amount of concentrated fertilizer at one time, so as to avoid burning the roots.
5. Iron deficiency: For woody flowers in greenhouses, because soil fertility conditions vary greatly, yellowing leaves often occur. Its characteristic is that it is obvious on young leaves and milder on old leaves, with yellow mesophyll and green veins, forming a typical network pattern. It can be solved by applying ferrous sulfate aqueous solution. The method is to mix 7 parts cake fertilizer, 5 parts ferrous sulfate, and 200 parts water into a diluted solution and water with it.
What to do when Kalanchoe leaves turn yellow? Causes of and solutions for Kalanchoe leaves turning yellow
Kalanchoe is a plant with an auspicious meaning, with extremely high ornamental value and symbolic blessing significance, and it is deeply loved by many flower lovers. But if Kalanchoe is grown improperly, yellowing leaves may appear. Do you know any prevention and control methods for Kalanchoe leaves turning yellow? Let us learn about them together with the editor.
1. Caused by watering too much
Yellowing of Kalanchoe leaves caused by long-term watering: we all know that Kalanchoe generally does not need too much water. Overwatering causes [damage]; the young leaves lose their firmness, and the old leaves do not change much. The roots are relatively fine. At the same time, too much water will affect the respiration of Kalanchoe's roots and hinder their absorption of nutrients.
Solution:Watering must be restrained. As long as a thorough watering is given every 3 to 4 days and the potting soil is kept slightly moist, that is enough. What to do when Kalanchoe leaves turn yellow: during low temperatures in winter and the rainy season, watering should be controlled to avoid root rot. During the peak growing season, a dilute compound liquid fertilizer can be applied once every 2 to 3 weeks.
2. Caused by drought
If drought is caused because the owner has no time to care for it, that can also lead to Kalanchoe leaves turning yellow. Generally, if it is due to lack of water, the old leaves will wither, yellow, and drop from the bottom upward, while the growth of new leaves remains normal.
Solution:Manage it diligently and understand Kalanchoe's growth cycle and its watering habits at each stage. Increase watering appropriately.
3. Caused by too much light or too little light
Kalanchoe likes sufficient sunlight, but we know that too strong light at noon in summer can also cause Kalanchoe leaves to be scorched and turn yellow. If Kalanchoe lacks light for a long time, the chlorophyll in the leaves decreases, causing the green color of the leaves to gradually disappear, showing symptoms like albinism.
Solution:Except for slight shading at noon in midsummer, at other times it should be placed in a sunny spot. It needs at least more than 4 hours of direct light every day to grow robustly. What to do when Kalanchoe leaves turn yellow: although it can also grow in semi-shade, the stems will be thin, the leaves thin, the flowers few, and the colors pale. If it is too shaded, it easily drops leaves and produces no flowers. The most suitable temperature for Kalanchoe growth is 15°C to 25°C, and it can bloom in December. Amount and frequency.
The above is all the content I have learned today about Kalanchoe. I hope flower lovers will find this article helpful after reading it. If you want to learn more about Kalanchoe, please continue to follow Duorou Huapu, and we will provide you with more related knowledge!
Causes of and solutions for Kalanchoe leaves turning yellow, and prevention and control of soft Kalanchoe leaves
Kalanchoe, just hearing its name, sounds very auspicious. In fact, it got this name because its flowering period is very long. Kalanchoe also belongs to the succulent plants. Its leaves are thick and plump, and it is evergreen all year round. However, the leaves of some flower lovers' Kalanchoe have begun to turn yellow, greatly reducing its appearance. What can be done about this?
Causes of Kalanchoe leaves turning yellow
1. Improper fertilizing
If too much fertilizer is applied or the concentration is too high, the tips of new leaves will appear brown, and the old leaves will become dry, scorched, yellow, and drop. What to do when Kalanchoe leaves turn yellow: generally, the parts of the leaf surface where there is more fertilizer are glossy, but most of the leaf is uneven.
2. Low temperature
In cold winter, if the indoor temperature is low, or if the plant is exposed to cold wind, the leaves will also turn yellow and drop. In addition, flowers harmed by pests and diseases can also cause yellow leaves to drop. But if in winter a small number of leaves at the lower part of the plant turn yellow and drop, that is normal metabolism.
3. Light alternating between strong and weak
Kalanchoe likes sufficient sunlight, but we know that too strong light at noon in summer can also cause Kalanchoe leaves to be scorched and turn yellow. And if Kalanchoe lacks light for a long time, the chlorophyll in the leaves decreases, causing the green color of the leaves to gradually disappear, showing symptoms like albinism.
4. Environment too dry
If drought is caused because the owner has no time to care for it, that can also lead to Kalanchoe leaves turning yellow. Generally, if it is due to lack of water, the old leaves will wither, yellow, and drop from the bottom upward, while the growth of new leaves remains normal.
5. Watering too much
Kalanchoe is a succulent plant and does not need much water. Overwatering instead causes the leaves to dehydrate, the young leaves to lack toughness, and the growth of old leaves to stagnate. If watering is excessive and causes a shortage [of oxygen] at the bottom of the flowerpot, it will affect the respiration of Kalanchoe's roots and hinder their absorption of nutrients.
Solutions for Kalanchoe leaves turning yellow
1. Watering must be restrained
As long as a thorough watering is given every 3 to 4 days and the potting soil is kept slightly moist, that is enough. What to do when Kalanchoe leaves turn yellow: during low temperatures in winter and the rainy season, watering should be controlled to avoid root rot. During the peak growing season, a dilute compound liquid fertilizer can be applied once every 2 weeks to 3 weeks.
2. Fertilizing should be controlled
In fact, when flower lovers fertilize, most of them do not know the proper amount, resulting in excessive fertilizing and fertilizer damage. The best way to control fertilizing is to combine fertilizing with watering, watering promptly after fertilizing. This helps the plant absorb the fertilizer and also dilutes the fertilizer, so it will not cause excessive fertilizer in a local area and result in fertilizer damage.
3. Let in light and shade at the right times
At noon in summer, appropriate shading is needed; at other times, normal light is enough. Make sure to provide more than 4 hours of light every day. Although Kalanchoe can also grow in semi-shade, the stems and leaves will be rather weak and slender. Therefore, control the temperature between 15 and 25°C. In winter, when light is weak, appropriate artificial supplementary lighting can be used.
Prevention and control of soft Kalanchoe leaves
Once we have found the causes of soft Kalanchoe leaves, we can think of ways to prevent and control it. According to the causes, we first need to meet its light requirements. Apart from appropriate shading in summer, at other times it must be given sufficient light to ensure the growing environment meets its sunlight needs.
During Kalanchoe's dormant period, light needs to be reduced. Just 2 hours of light a day is enough; at other times it can be placed in a warm, shaded place, and bright scattered light will be even better. In addition, watering should alternate between dry and wet. Do not water too much or too little. While ensuring sufficient water, also pay attention to preventing waterlogging. For soft leaves, you must find the right cause, and then it can be solved well.
What to do when Kalanchoe does not bloom
1. Ensure the plant receives even light
In fact, Kalanchoe's light is very easy to control. Place it in a sunny spot on the balcony, with appropriate shading only in summer. At other times, provide normal light, ensuring the daily sunlight time is more than 4 hours. In order to make the Kalanchoe plant bloom evenly, attention should be paid to frequently changing the direction of the flowerpot so that the plant receives light evenly. On a building balcony, the flowerpot should be turned 180 degrees every half month.
2. Supplement nutrients in time
From the time Kalanchoe is brought indoors at Frost's Descent to October of the following year is exactly the late stage of flower bud differentiation and the full bloom period of Kalanchoe, and also the time when it grows and accumulates nutrients, so its demand for fertilizer is very large. Therefore, apply a fishy-smelling fertilizer mainly based on phosphorus and potassium once a week [to promote] flower bud differentiation.
Kalanchoe's flowering period is long, and it is also a period of "showing results." During this period, apply a dilute nitrogen-phosphorus-potassium fertilizer or a 0.2% potassium dihydrogen phosphate solution once a month, so that the later flowers will not become smaller and paler due to lack of fertilizer.
In summary, although Kalanchoe is a succulent plant that is relatively easy to care for, if the care techniques are improper, it is still possible for Kalanchoe not to bloom and for its leaves to turn yellow. Therefore, everyone must pay attention to the amount of watering and temperature control!