Why do potted leaves turn yellow?How can I protect myself?

Watering too often or without water, too much fertilizer or too much concentration will cause the leaves to turn yellow, when the soil is slightly dry, water enough, and flower fertilizer should be applied once every three months.

This is because there is not enough light and water, so the leaves will turn yellow, and we should let the plants get more sunlight to promote photosynthesis, so that they can be protected.

In general, there are several reasons for the yellowing and falling of flower and grass leaves.

1. Water yellow. Excessive water and stagnant water in the potting soil will lead to root lesions and rot of plants, and the symptoms are that the new young leaves are dark and dull, and the new shoots are wilted and shrunk.

Solution: control the water and loosen the soil in time to let the water evaporate as soon as possible.

2. Dry yellow. Contrary to water yellowing, it refers to the phenomenon of yellowing of plant leaves caused by lack of water caused by improper watering for a long time. For example, if the potting soil is too full and cannot be watered thoroughly, it is manifested that the color of the new leaves is normal, but the old leaves start to dry up and fall off from the roots.

Solution: Take out too much potting soil and water it thoroughly, or use the potting method to let the potting soil absorb the water.

3. Fat yellow. Excessive fertilization makes the new leaves appear thick and unstretched, and the old leaves turn yellow and fall off.

Solution: Stop fertilizing, water frequently, or sprinkle some leafy vegetable seeds in the pot and pull them out when they germinate and grow to a certain height, so as to consume too much fertilizer.

4. Lack of fat yellow.

Long-term failure to change the potting and changing the core soil, insufficient fertilization, or the yellowing of the leaves caused by the potting is too small.

Solution: According to the needs of plant growth, apply fertilizer and water in time, change the pot and soil once in one or two years, and apply sufficient base fertilizer when changing the pot. There are many more reasons why potted leaves turn yellow, and I will continue to introduce them in future articles, so please continue.

As long as we have the patience to find the right cause, we can solve the problem by prescribing the right medicine, and we can make the potted flowers grow healthily.

In the process of plant growth, if the leaves turn yellow, there are many reasons, the common main reasons are insufficient light, improper watering, too much fertilizer, improper soil, too high temperature, pests and diseases, when these phenomena occur, it is necessary to prescribe the right medicine in time to promote the normal growth of plants.

1. Insufficient light.

What is the cause of the yellowing of plant leaves, first of all, we consider the problem of light, because the growth of plants is inseparable from the supply of light, if the light is insufficient, the leaves can not photosynthesize normally, which will cause poor plant growth, the phenomenon of yellowing and withering of leaves, it is best to make up the light in time.

2. Improper watering.

If too much watering will lead to water accumulation in the pot, it will cause the root rot of the plant, or a long-term lack of water or drought, which will cause the plant to slowly turn yellow from bottom to top, and even die and wither, it is best to water reasonably, and it is best to water according to the growth habit of the plant.

3. Too much fertilizer.

If there is too much fertilizer will burn the roots, so that the leaves of the plant can not absorb the nutrients normally, due to poor growth caused by the phenomenon of yellowing and falling, it is best to apply fertilizer reasonably, and the soil should be loosened in time after fertilization, so that it can be fully mixed with the soil.

4. Improper soil.

The growth of plants is inseparable from the cultivation of substrate, if the soil is improper or the permeability is poor, it will lead to damage to the roots of the plant, so that the leaves will appear yellow and dry due to the growth of the stunted phenomenon, it is best to choose the reasonable soil according to the plant, and the best repotting treatment from time to time.

5. The temperature is too high.

The growth of plants is directly related to the environment, if the temperature is too high, it will lead to the acceleration of the evaporation of water from the leaves, which will affect the photosynthesis of the leaves, so the phenomenon of yellowing and wilting occurs, generally when the temperature is too high, it is best to place it in a cool place, or increase the air humidity by spraying to reduce the surrounding temperature.

6. Pest and disease hazards.

If the harm of diseases and insects in the growth process of the plant will also lead to the phenomenon of slowly yellowing the leaves, it is best to clean up the impurities on the potting soil from time to time, once it is found that the corresponding drugs are used to spray and kill, and then cut off the dead branches and rotten branches on the plant to avoid bacterial contamination.

Potted flowers, first of all, you should know its name, you can consult its maintenance information, understand it to manage. There are many reasons for the yellowing of leaves, which are related to water, fertilizer, and light, so it is recommended that you first check the maintenance information according to its name....

Is it that there is no fertilization, and the lack of nutrients will be yellow, and it should be fertilized properly.

Teach you three tricks to keep the leaves of green plants from yellowing!

During the growth period of potted flowers, the leaves often turn yellow, and most of the reasons are caused by improper cultivation management. Here are a few examples of "yellowing".

1. Water yellow: the potting soil is wet for a long time, resulting in soil hypoxia, which makes some roots rot, water absorption and fertilizer absorption ability weakened. It is manifested in the young leaves are dark yellow and dull, the apical center of the new shoots is atrophied, and the branches and stems are small and yellow-green.

In this case, the soil should be loosened, watering should be controlled, fertilizer should be stopped, and the heavy ones can be depotted, and the soil balls should be dried in the shade and then potted.

2. Fat yellow: due to excessive fertilization or excessive concentration, especially the yellow leaves caused by partial nitrogen fertilizer, the new leaves are thick and shiny, but the leaf surface is uneven and uneven, and the old leaves gradually turn yellow and fall off. At this time, the fertilization should be stopped and the amount of watering should be increased appropriately to dilute the nutrients, the potted flower fertilizer water is insufficient or the pot is small, the root system in the pot is senescent or too dense, and the leaves of the flower plant will become thinner and yellow, at this time the pot should be changed and the soil should be changed, usually when the rain arrives at the beginning of summer.

3. Alkali yellow: potted acid-loving flowers, such as camellia, Milan, smile, rhododendron, jasmine, etc., often cause green loss and yellowing due to soil alkaline reaction. It is manifested in the veins that start from the new leaves of the branches, and the leaf veins, especially the main veins, remain green, and the yellow-green phenomenon is very obvious.

With the aggravation of the degree of yellowing, the leaf veins gradually lose green, and then the whole leaf is white, the leaf edge is scorched, the leaf is littered, and the branches are withered in severe cases, so that the whole plant dies.

4. Yin yellow: Flowers that like sunlight often cause the branches and leaves to wither due to insufficient indoor light, so the pot should be moved to the outside for ventilation and lighting. For semi-negative flowers, such as bamboo, the leaves will also turn yellow under strong light, so to avoid exposure to high temperature and strong light in summer, they should be moved indoors or set up in a shade shed for storage.

5. Dry yellow: due to long-term lack of watering, or less watering, the leaves are yellow or brown ends, brown edges, and the old leaves fall off from the bottom up. However, the new leaves generally grow normally, and when this phenomenon occurs, water should be replenished so that the soil is no longer short of water.

6. Burning yellow: potted flowers that like shade and dampness, such as spider plant, evergreen, hosta, etc., such as strong direct sunlight, the leaves also have brown ends, brown edges, this phenomenon occurs, and the pot can be placed in the shade.

7. Damp and hot yellow: some potted flowers that are not resistant to high temperature and high humidity have yellow leaves caused by poor ventilation and improper shading in midsummer, such as hanging bell begonias in summer. Therefore, high temperature and high humidity are also easy to cause leaves to turn yellow, this kind of leaf yellowing can be prevented as long as attention is paid to ventilation and cooling, and the potting soil can not be too wet.

The appearance of yellow leaves is mainly caused by the following reasons:

Insufficient light: Banyan tree is a light-loving tree species, likes a sunny environment, grows poorly in the shade or semi-shade, and is prone to yellow leaves and leaf loss, which can solve the problem when placed in a good light place. Note that it is advisable to be in semi-shade during the high temperature period in summer, but it is not a good thing to grow in the sun all the time, and there will be no burning of the leaves.

Poor ventilation: During the 20-35 years of growth, good ventilation conditions are required to ensure that the plants grow luxuriantly. Fallen leaves occur when ventilation is poor. But do not ventilate during low temperatures.

Improper watering: It is advisable to water the banyan tree between dry and wet, and do not water the potting soil once if it is not dry. However, excessive drought will also cause the phenomenon of yellow leaves and falling leaves, and the management of water and fertilizer should be strengthened during the high temperature period in summer, because the growth temperature of the banyan tree is between 20-30, and the management of fertilizer and water should be paid attention to in this temperature range, so as to ensure the healthy growth of the plant, and the branches are luxuriant and bright.

Improper fertilization: Banyan trees like fertilizer, but do not fertilize too much, let alone apply raw fertilizer, thick fertilizer, fertilizer damage will occur when the leaves will fall off. When there is a lack of fertilizer, it is easy to yellow the leaves, but there will be no serious fall.

If it is due to improper lighting, it is necessary to increase the light or shade appropriately according to the situation. If it is due to improper watering, it is necessary to replenish water for the dry plants and drain the waterlogged plants in time. If it is due to improper fertilization, the amount of fertilizer needs to be controlled.

If it is due to pest erosion, it needs to be pruned and sprayed for control.

1. Improper lighting.

Different bonsai plants have different light needs, and those that like light tend to be placed in a sunny place, while those that are shade-tolerant should be properly shaded to avoid receiving direct light. If the light is too strong or too weak, it will cause the bonsai to grow poorly, causing its leaves to turn yellow. In this case, it needs to be moved to semi-shade or the light should be intensified.

2. Improper watering.

Bonsai plants have different water needs, but basically they can't be short of water for a long time, and they can't let there be water in the potting soil, otherwise the leaves of the plants will also turn yellow. Therefore, it is necessary to water according to the habits of the plants, and those who like moisture should be watered frequently, keep the potting soil with a certain humidity, and water a little less if it is drought tolerant.

3. Improper fertilization.

The growth of bonsai needs a certain amount of nutrients, in addition to the base fertilizer when planting, the growth period can also be appropriate top dressing, if the fertilization is not enough, the plant will cause the leaves to yellow due to lack of fertilizer, and if the fertilizer is excessive to form fertilizer, it will also burn the roots and cause the leaves to turn yellow. Therefore, depending on the situation, increase or decrease fertilization.

Fourth, the erosion of diseases and insects.

If bonsai is eroded by germs or attacked by pests, the leaves will also turn yellow. At this time, all the yellowed leaves need to be cut off and sprayed with drugs such as carbendazim**. In addition to manual capture, pests can also be killed with some pesticides...

The first point is likely to be the change in this weather, the second point is likely to be the temperature is too high to cause such a phenomenon, the third point is not timely fertilization will cause such a phenomenon, the best way to treat in time is to pay attention to the effect of fertilization.

The reason is that the fertilizer is not added in a good ratio, and then the leaves will turn yellow due to the lack of sun. For timely treatment, you need to put it in a sunny place, then add water first, and put in a well-proportioned fertilizer again.

Possible causes are moisture problems, too much light, too much fertilization, and poor ventilation. It is necessary to water and replenish in time, moisten the soil, open windows frequently for ventilation, avoid the scorching summer sun, and apply fertilizer appropriately.

It can be caused by the soil being nutrient-free, dehydrated, and not getting enough light, and the best thing to do is to take it outdoors and water it more often to drip the soil with nutrient solution and fertilizer.

1. Suitable lighting. The yellowing of the leaves of flowers is most likely caused by poor lighting. If the light is too strong or the sun is not exposed to the sun for a long time, the plants cannot photosynthesize and will appear yellow.

If the sun is too strong and you get sunburned, you should shade the sun as soon as possible and spray water frequently to promote the recovery of the plant. If it is caused by long-term lack of sunlight, it is necessary to increase the light, and more astigmatism in the initial stage to give the plant an adaptation stage, and slowly increase the light.

2. Watering appropriately. The yellowing of flower leaves may also be caused by a lack of water, which consumes a lot of water during the growth period, and there is no stagnant water to replenish the water, and the roots cannot absorb water, and the leaves will appear dry and yellow. If it is caused by this seeding situation, it is recommended to water it as soon as possible to allow the plant to absorb enough water, and the growth will slowly resume.

3. Reasonable top dressing. Flowers and plants consume a lot of nutrients during the growth period, such as early fruiting for a long time without top dressing, the soil is poor, can not absorb the required nutrients, and it is easy to have yellowing after a long time. If this situation is caused, it is recommended to top dressing as soon as possible, select suitable fertilizer varieties according to the growth stage, and use thin fertilizer to supplement fertilizer frequently, so as to promote the recovery of growth as soon as possible.

Note that raw fertilizer must not be applied, otherwise it is easy to produce fertilizer damage and noisy cultivation.

4. Timely temperature control. The cold tolerance of many flowers and plants is relatively poor, if the temperature can not be well controlled after winter, it is easy to frostbite if it is in a low temperature environment for a long time, resulting in yellow leaves. If it is low-temperature frostbite, it is necessary to raise the temperature and control the temperature in time to keep warm.

5. Replace the soil. Flowers and plants are different, and the requirements for the soil are not high. Some plants prefer acidic soils, while others prefer alkaline soils.

If the pH of the soil is not suitable or too sticky, it will hinder the respiration of the root system and cause yellow leaves. The soil should be changed as soon as possible according to the growth habits of the plants to ensure that the soil is suitable.

There are several main types of causes of yellowing of the leaves of potted flowers:

1) Yellow leaves caused by excessive watering are manifested in the dark yellow and dull young leaves, but there is no obvious change in the old leaves, the branches and stems are small and yellow-green, and the new shoots are shrunk and not long.

2) Due to the long-term lack of watering, or less watering, the leaves are yellow, and the old leaves fall off from the bottom up, but the new leaves generally grow normally.

3) Potted flowers that like yellow and dampness, such as spider plant, evergreen, hosta, etc., if exposed to strong direct light, the leaves will appear scorched at the top or edge.

4) Alkali yellowSome acidic soil flowers and trees, such as gardenia, camellia, rhododendron, jasmine, etc., such as potting soil or water quality is alkaline, the leaves turn from green to yellow, and even fall off.

5) Fat yellow due to more fertilization or excessive concentration, the top of the new leaves appear dry brown, although the general leaf surface is thick and shiny, but most of them are uneven and unstretched, and the old leaves are dry and yellow and fall off.

6) Damp heat yellowSome potted flowers that are not resistant to high temperature and high humidity cause yellow leaves due to poor ventilation and improper shading in midsummer. For example, the hanging bell begonia has this phenomenon in summer.

7) Lack of fertilizer yellow potted flowers only watering for a long time without fertilization, or do not change the pot for many years, the roots are rolling, the top dressing is easy to leak, and the plant can not get fertilizer, resulting in yellowing of the leaves.

Potted flowers are harmed by diseases and insects or encounter sudden cold and heat, which can also cause yellow leaves to fall off. If only a few leaves are yellowed and fall off on the lower branches of the plant, this is a normal phenomenon of leaf maturity and aging.