Why do the leaves of flowers turn yellow and fall, and why do some flower leaves turn yellow and fal

1) Too much moisture. The potting soil is too wet for a long time, which causes the soil to lack oxygen, which leads to root rot. After being damaged, the young leaves first turn pale yellow, and then the old leaves also gradually turn dark yellow. At this time, watering should be controlled immediately, fertilization should be stopped, and the soil should be loosened frequently so that the soil is well aerated at this time.

2) Drought dehydration. Flowers that are watered or watered for a long time (i.e., wet at the top and dry at the bottom) will cause the leaf color to be dull and dull, and the leaves will wilt and droop. First, the lower leaves are aging, and they turn yellow and scorched from the bottom to the top.

At this time, it is necessary to water appropriately to gradually recover before switching to normal water and fertilizer management. (3) Long-term defertilization. There is no fertilization or no potting and soil change for a long time, and the lack of nutrients in the soil causes the branches and leaves to be thin and weak, and the leaves to turn yellow.

It is necessary to pour the pot in time, replace it with new fertile and loose culture soil, and gradually increase the flower fertilizer or thin fertilizer water.

4) Excessive fertilization. If the fertilizer concentration is too large or the fertilizer is not decomposed, the concentration of nutrient solution in the soil is too high, which leads to the extravasation of flower cell sap, resulting in the separation of the plasma wall, resulting in the scorching of the edge of the old leaves until the whole plant dies. In this case, the fertilization should be stopped immediately, the amount of watering should be increased, so that the fertilizer flows out of the drainage hole, or immediately pour the pot, rinse the soil with water and then replant it into the pot, or remove part of the old soil and replace it with new cultivation soil.

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 the plant, and the symptoms are that the new young leaves are dark and dull, and the new shoots are atrophied.

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 soaking 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 soil, insufficient fertilization, or too small potting caused by the yellowing of leaves.

Solution: Apply fertilizer and water in time according to the needs of plant growth, change the pot and soil once in one or two years, and apply sufficient base fertilizer when changing the pot. There are many other reasons for the yellowing of potted leaves, 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.

The soil of the breeding plant has a certain particularity, the need to loosen the fertile soil, the plant can grow well, and the soil can be changed every once in a while to prevent the soil from compaction, which will affect the normal growth of the plant and cause the phenomenon of yellowing of the leaves.

Plant growth needs a certain amount of light, only with enough light plants can carry out photosynthesis normally, so do not keep the plant in a dark environment, the leaves will be yellow, it should be noted that do not let the plant blind in the sun, so that the leaves of the plant will be easy to lack water, become yellow, and the whole plant will wilt or even dry up. It is best to maintain in a semi-shaded environment, and also pay attention to the ventilation of the environment.

Water is also necessary in the process of plant growth, according to the growth of the plant and the dryness and wetness of the soil, do not appear too much watering problem, soil waterlogging, it is easy to cause the root of the plant to be soft, but also cause the root system to rot, resulting in yellowing of the leaves. When watering, you can touch the soil, and water when it feels dry.

In the peak season of plant growth, it is necessary to supplement fertilizer in time, to prevent the lack of nutrients and poor growth and development of plants, the concentration of fertilization should be appropriate, and thick fertilizer can not be used, which will cause the absorption burden of the root system, and Zen hail will also cause fertilizer damage, and the leaves will turn yellow, so it is more important to choose a suitable fertilizer.

The causes of yellowing of the leaves of flowers are: too much light, too little watering, too much fertilization, soil alkalization, and compaction.

1. The light is too strong

Flowers are suitable for growing in a sunny environment, but too long to receive sufficient light or strong light will cause the leaves of the plant to turn yellow, so it is necessary to control the light duration when maintaining flowers, it is best to provide six hours of light for the plant every day, and shade the flowers in time when the light is too strong.

2. Too little watering

Flowers will consume a lot of water in the process of growth, if the flowers are not watered in time, it will lead to a lack of water and yellow leaves, so in the maintenance of flowers can provide the correct water for the plants, in the spring and autumn every three days of watering, in the summer once a day, in the winter once a week.

3. Excessive fertilization

Flowers in the process of growth of nutrients demand Sun Kuanbo is limited, excessive nutrients for the plant, will lead to the phenomenon of fertilizer and yellow leaves of flowers, so in the maintenance of flowers can provide nutrients for the plant reasonably, it is best to mix fertilizer and water evenly to provide flowers, so that the plant can grow better.

4. Soil alkalization

Most flowers are suitable for Zexiang to grow in an acidic environment, for this kind of flowers, if the planting soil is alkalized, it will cause the plant to fail to grow normally, and the leaves will be yellow, so in the later maintenance of flowers, you can water the soil every other week vinegar solution or soak orange peel solution, and keep the soil weakly acidic.

5. Compaction

The plant will consume a large amount of nutrients in the growth process, resulting in the soil compaction, this soil nutrient is poor and not breathable and drainage, will affect the normal growth of the plant, need to immediately repot the plant, during the repotting can properly cut off the yellow root veins of the plant, promote the growth of flowers and leaves.

The yellowing of the leaves is mainly due to the following aspects:

1) Overwatering. If the potting soil is in a damp state for a long time, it will cause root rot due to lack of oxygen, and the leaves will turn yellow and die.

2) Soil alkaline. Water or soil culture with more saline and alkali components is easy to make its leaves yellow.

3) Insufficient nutrients. The lack of soil change for a long time causes the leaves to turn yellow due to insufficient nutrients.

4) Improper fertilization. Excessive fertilization or unrotted organic fertilizer will cause "root burning" and cause yellowing.

5) Pest infestation. Pests such as red spiders and scale insects can also cause yellowing of leaves.

Insufficient light, excessive watering, iron deficiency yellowing common to southern flowers, and some diseases can make the leaves of flowers yellow.

1. Dry yellow: the yellow of lack of water is different from the yellow of more water, the yellow of lack of water is the first sign of the leaf tip or edge of the withering and shiny, dry, the old leaves are yellow and fall off from the bottom to the top, but the growth of new leaves is relatively normal, pay attention to watering when watering enough, watering thoroughly;

2. Burning yellow: strong direct sunlight to some shade-loving flowers is easy to cause flower leaf tips, leaf margins withered, and yellow spots appear in the sunny part of the leaves, which can be moved to the shade;

3. Lack of light yellow: If the environment is shaded for a long time, the leaves can not get enough sunlight and cannot form chlorophyll, and the whole leaf turns yellow and then falls off.

4. Fertilizer yellow: the yellowing of flowers caused by excessive fertilization or excessive concentration should be stopped immediately once found, and part of the fertilizer should be washed with a large amount of cleaning in serious cases;

5. Lack of fertilizer yellow: manifested in the young leaves of Yan Qin pins become light, yellow or light green, and the old leaves are more normal or gradually turn from green to yellow, check the potting soil if there is a dry knot phenomenon should be changed soil, usually thin fertilizer is applied diligently and water some alum water in a timely manner.

What is the cause of yellowing of plant leaves.

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 Bika water-soluble 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.