Analysis and treatment of 12 causes of yellowing of pelargonium leaves

There are many reasons for yellowing of geranium leaves. Sun exposure, lack of water and lack of fertilizer will all cause yellowing of geranium leaves. Of course, geranium yellowing occurs. We must first analyze the causes of yellowing of geranium leaves and know that the reasons are the right medicine. Here are 12 reasons and treatment methods for yellowing of geranium leaves.

Yellowing of leaves of 12 species of geraniums and their treatment methods 1. Environmental mutation leads to yellowing of leaves

The old leaves turn yellow caused by the change of environment. Before the summer high temperature comes, many flower friends will move the small sky indoors from the outdoor flower rack, or from the Nanyang platform to the north balcony, or from the all-day outdoor to the corridor, or put up a sunshade net for the flowers, and so on, the growth environment will suddenly change greatly, which will cause the old leaves of the geranium to turn yellow and the bud to dry up.

Treatment method

We do not need to worry too much, Xiaotian has a process of adapting to the new environment, just pinch off the big yellow leaves and dry buds, and other normal management.

2. Too much watering leads to yellowing of leaves.

Usually too often, too much watering, basin soil for a long time too wet, coupled with high temperature, causing Tianzhu part of the root rot, manifested in the leaves that there is no obvious change in the old leaves, tender leaves become yellowish. Serious old leaves will also appear yellow leaf shedding phenomenon.

Treatment method

This requires immediate water control, loose pots of soil in a ventilated and dry place to speed up evaporation of water. Or put the flowerpot on a stack of newspapers or dry peat and let the newspaper and peat suck out too much water from the pot as soon as possible. If the situation is particularly serious, the whole clod can be protruded from the basin and placed in dry peat or mound to make the water seep out quickly, and then replant it into the basin after the drooping branches and leaves are restored.

3. Lack of water leads to yellowing of leaves

Some flower lovers may misunderstand the problem of proper water control of geranium in summer, so let the basin soil dry completely for a long time before watering, causing the geranium leaves to turn yellow and fall off from the bottom up, and in severe cases, the petiole droops and wilts.

Treatment method

In this case, it is necessary to adjust the watering method and use the principle of alternating dry and wet to water the small sky.

4. Sun exposure leads to yellowing of leaves.

Geraniums are in a warm and humid environment. If exposed to the sun, the leaves will turn yellow and even die seriously.

Treatment method

It is best to put it in a cool place in summer to avoid strong light.

5. Dry air leads to yellowing of leaves.

If the air is too dry and not ventilated, the branches and leaves will be withered and yellow.

Treatment method

Place the transplant in the ventilated place.

6. Lack of sunlight leads to yellowing of leaves

The leaves on the inside of the plant turn yellow and fall off due to lack of light, the old leaves turn yellow after germination of new branches and leaves, edema disease and yellowing of leaves caused by heavy water, and great changes have taken place in the environment of potted flowers (such as suddenly moving indoors from outdoors in midsummer or just entering the house in winter).

Treatment method

As the yellowing leaves also hope that they can recover as soon as possible, they will absorb the nutrients accumulated by the plant itself, and it consumes more nutrients than it produces. So we don't have to worry too much, we just need to remove the yellow leaves in time.

7. Excessive temperature leads to yellowing of leaves.

Due to the high temperature in summer, the roots normally absorb iron from the soil, resulting in high-temperature, iron-deficient yellow leaves and white leaves. When the iron deficiency is mild, the mesophyll tissue of the tender leaf is light green, and the leaf vein remains green; in severe cases, the tender leaves are all yellow-white, and withered spots appear and gradually scorch and fall off.

Treatment method

There is no need to worry too much about this situation. Iron chelate solution can be sprayed and irrigated. Once a week, it can basically return to normal after 3 times. In addition, lowering the ambient temperature, such as moving to a ventilated and cool place or an air-conditioned room, the leaves will slowly return to normal.

8. Too low temperature leads to yellowing of leaves.

The geranium likes to be warm in winter and cool in summer. It can blossom normally when the indoor temperature is kept at 10-15 ℃ every day in winter and the temperature at night is above 8 ℃. But the optimum temperature is 15-20 ℃. If the temperature is too low, it will cause the leaves to turn yellow.

Treatment method

It is best to keep it indoors in winter to maintain the optimal temperature.

9. Excessive fertilization leads to yellowing of leaves

Excessive fertilization or high concentration will cause root burning, root rot phenomenon, the reaction on the leaves is that the old leaves are yellow, the young leaves are thick, shiny and uneven.

Treatment method

At this time, fertilizer control, ploughing and watering are needed. If the fertilizer damage is serious, you should immediately pour the basin, remove part of the old soil, wash the soil block with water, replace it with plain soil without fertilizer, and re-root.

10. Long-term lack of fertilizer leads to yellowing of leaves

Pelargonium blossoms diligently, and flowering consumes a lot of nutrients. Spring is the full bloom of small days, they spare no effort to bloom heartily, bringing a lot of happiness and joy to flower friends, if we do not carry out proper topdressing in time, there will be yellow leaves after flowering.

Treatment method

In this situation, it is necessary to gradually increase the concentration of fertilizer and topdressing, so as to prevent excessive fertilization from burning seedlings until the color of the leaves returns to normal.

11. Rotten roots lead to yellowing of geranium leaves

Watering too much is not a good thing. Too much watering of geraniums can cause the roots of geraniums to rot. Eventually directly cause the method of geranium leaves.

Treatment method

Remove the rotten root, sprinkle it with doinling on the root, plant it with new soil, irrigate it with soaking water 3 hours after planting, and spray the leaves with doinling.

12. Diseases and insect pests cause leaf yellow geranium if infected by fungi, viruses and other pathogens, it will cause a variety of leaf spot disease, gray mold, local tissue necrosis of leaves, loss of green macula or yellow-green mottle, or yellowing and shedding of the whole leaf. Damaged by red spiders, white planthoppers and other pests, chlorophyll is destroyed, leaves also appear yellow and white spots, or leaves become yellow and fall off. Treatment method

This requires timely spraying according to the causes of diseases and insect pests.

What if the geranium leaves turn yellow? Prevention and treatment of yellowing of pelargonium leaves

Previously, some flower friends reported that the leaves of their geraniums turned yellow. What on earth caused it? In fact, there are many reasons for the yellowing of geranium leaves. According to the feedback of flower friends, the editor summarizes some common causes of yellowing of geranium leaves, along with corresponding prevention and control methods for your reference and study.

First of all, we should be familiar with the habits of geraniums: geraniums are drought-resistant, avoid water-wet, like fertilizer varieties, avoid stagnant water in the basin, properly control water in winter, do not spray more water to the leaves with villi, and apply phosphorus and potassium-based liquid fertilizer in autumn and winter. Room temperature protection 15 degrees grow well, about 7 degrees can survive the winter safely.

If the geranium leaves wither or soft rot occurs, it is mostly caused by too much watering. And the leaf is relatively firm but the edge is scorched yellow, it may be underwatered, generally these two cases can cause the leaf to fall off.

Some flower friends are used to spraying water on the geranium. Don't you know that the epidermis on the leaf surface of the geranium has a lot of hair and is not suitable for spraying water. Spraying water may cause geranium leaves to wilt.

In addition, during the normal growth period of geranium, as long as the whole plant is healthy, there is no need to worry about the occasional appearance of a small amount of yellow leaves. If a large number of yellow leaves appear in a short period of time, it is usually due to the condition of the root system and the cause of soil and water.

Geranium in the overheated environment, chlorophyll is destroyed, leaves collectively yellow, shedding more, serious new leaves whiten or yellowing does not grow up. At this point, the leaves get thicker and smaller, reducing the amount of light they receive. (overheat and dormancy) at this time, the geranium should be transferred to a shady place to reduce exposure to sunlight (and not too shady). If the weather turns cool, it will recover by itself. It's too cold. Too cold will frostbite the leaves, and when the cells die, the leaves turn yellow and fall off.

Let's popularize the common sense of flower cultivation: when the sun is high and the temperature is high in summer, foliar transpiration is intensified. At this time, the root system does not grow well, or the amount of water absorbed by the root system is less than the amount of water needed on the leaf surface, and the plant will get sick. The sun is not very strong in spring, and this contradiction is not very prominent, and the problem of a straight rise in temperature in summer suddenly becomes obvious.

Conclusion: the above are the reasons and solutions for the yellowing of geranium leaves. I hope it will be helpful to the flower lovers who grow geraniums.

Causes and treatment of yellowing of pelargonium leaves

Geranium is a kind of ornamental flower that many people like. It is usually made into potted plants and put people at home, but after many people cultivate it for a period of time, the leaves of the geranium will turn yellow or fall off, affecting their appearance. Why do the leaves of geranium turn yellow? What should I do with it when it turns yellow? Today, I would like to tell you something about this. While telling you the cause of the yellowing of geranium leaves, I will also write down the specific treatment methods to tell you.

Causes and treatment of yellowing of pelargonium leaves

1. It depends on the specific symptoms of geranium leaves to deal with.

Usually, after the leaves of the geranium turn yellow, we should carefully observe that if it is found that its leaves have withered or soft rot, it means that too much watering and timely control of water supply can improve the symptoms of yellowing of its leaves. If the edge of the geranium leaves is yellow, it means that watering does not open the mouth, timely replenishment of water can make the leaves green.

2. Spraying water will make the geranium leaves yellow.

At ordinary times, some friends who like flowers and plants will spray water on the leaves of the geranium with a spray can. in fact, this is wrong, because the leaves of the geraniums have a lot of fine hairs on the surface, and the moisture will stay on its surface for a long time. When serious, it will make the leaves yellow and affect their appearance.

3. Weather reasons

When the weather is hot in summer, the leaves of the geraniums often turn yellow, which is due to the transpiration of the leaves. The best treatment is to move the geraniums to a cool and ventilated place, and replenish the water in time, so that the yellowing of the leaves can be significantly reduced.