Ask the gardenia is always yellow leaves, burnt leaves, what s going on

The leaves of the gardenia are easy to turn yellow, the leaves are yellow, the whole flower is sick, many people will think that it is a lack of water, so they water a lot, and the result is more and more wilted, which is really a headache.

In fact, it may just be because of the acidity and alkalinity of the soil.

Excerpt from "Baijiahao" for reference.

Although gardenias like moisture, but they will not be easy to leaf yellow because of lack of water, gardenia is easy to leaf yellow, most of them are because of the problem of gardenia soil, soil is very important for the growth of gardenias, gardenias like to grow in acidic soil, the pH value of the soil is best maintained between, if the pH value of the soil is not enough, gardenia is prone to leaf yellow, at this time you only need to add some ferrous sulfate when watering the flowers. Take a small amount of ferrous sulfate or vinegar according to 1:3000 and 1:

Neutralize the ratio of 300 with water, then stir well and irrigate the gardenias.

If you don't have ferrous sulphate at home, adding a few drops of vinegar to your water is also a good option to change the pH of the soil.

Frequency: For ferrous sulfate, you can water it twice a month, vinegar needs to be 3-4 times a month, and you can stop watering when you see the gardenia leaves turn green. You can also put vinegar water in a watering can and spray the gardenia leaves 4-5 times a month until the gardenia leaves turn green.

Gardenia inexplicably yellow leaves withered, and the tips of the leaves are still scorched? It may be that 3 keys are not done well!

There are three main reasons why gardenia leaves are yellow. First, the light is too strong and yellow. Yellow spots tend to appear on the leaves under strong light exposure, and gradually expand into yellowing of the entire leaf.

The second is that the soil is unsuitable, serious compaction or too alkaline, resulting in the plant can not absorb nutrients and water normally, and the leaves will also turn yellow. The third is too much watering, the amount of water is large, and the root system is easy to rot, so that the leaves will turn into yellow, dry and other phenomena.

If the yellow leaves are caused by too much light, reduce the light and it will slowly recover. Second, the three situations can be rescued together, first remove the yellow leaves, subtract the general from the other leaves, change the pot, replant with permeable and breathable planting material, cut off the diseased roots and dead roots before planting, and use carbendazim to disinfect and irrigate after planting, and put them in a cool and ventilated place to slow down the seedlings.

Various causes and solutions of gardenia yellow leaves.

One is water yellow. Caused by over-frequent watering, it is characterized by no obvious change in old leaves and yellowing of young leaves; This should be done with immediate water control;

The second is dry yellow. Caused by lack of water and drought, it is characterized by the first yellow leaves from the bottom up, if the lack of water for a long time, the whole plant will be yellow, and even die, should be watered in time;

The third is fat yellow. Caused by excessive fertilization or high concentration; It is characterized by thick, shiny, and uneven young leaves; Fertilizer, cultivation and watering should be controlled;

Fourth, hungry yellow. It is caused by insufficient fertilizer, low fertilizer concentration, and long fertilization interval; It is characterized by the first yellow of young leaves and young stems, and if you do not fertilize in time after seeing this phenomenon, it will also cause the whole plant yellow leaves or even die; For flowers lacking fertilizer, avoid applying a large amount of thick fertilizer at one time, so as not to cause root burning;

Fifth, iron deficiency yellow leaves. Due to the great change of soil fertility conditions, the phenomenon of yellow leaves often occurs in greenhouses, which is characterized by obvious young leaves, light old leaves, yellow mesophyll, green leaf veins, and the formation of a typical network. It can be solved by applying ferrous sulfate aqueous solution, and the method is: 7 parts of cake fertilizer, 5 parts of ferrous sulfate, and 200 parts of water are prepared into multiple liquid water.

It may be a lack of nutrients, it may be that the soil is more alkaline Gardenias prefer slightly acidic soils.

Slowly acclimatize to the environment. If you buy a gardenia from the market and suddenly change from the greenhouse to a new environment, you need to adapt to the new environment slowly, of course, due to the difference in temperature and moisture in the early stage of adaptation, it may cause the leaves to turn yellow. Therefore, observe for a period of time, and pay attention to maintenance during the period.

Water more. Gardenias are water-loving and tend to grow in the south wind, but in the north, they are drier and the air is not humid enough, so the leaves will turn yellow. So, it's best to put the gardenias in a large tray with water around the tray and at the same time, take care to sprinkle the foliage every day so that the leaves are fully moistened.

Acidic water is preferable. When watering gardenias, there are also places to pay attention to, gardenias like acidic water, like alkaline water in the north to water too much, it is easy to cause yellowing of leaves, therefore, pay attention to correct watering.

Open windows for ventilation. Gardenias need to be well ventilated and well-lit in an environment where gardenias grow. If you don't open the windows often, you can also show signs of yellowing of the leaves, so remember to open the windows every day to ventilate.

Proper fertilization. Gardenia needs to be fertilized in the process of maintenance, but attention should be paid to avoid excessive concentration when fertilizing, otherwise it will also lead to excess nutrients and yellowing of the leaves, so it is necessary to water it with water to dilute the soil.

Precautions. For the yellow leaves of gardenias, you can use scissors to cut them off to ensure the normal growth of the main stem, so that if you maintain it well, new leaves will slowly grow.

Most of the causes of gardenia yellow leaves are caused by improper management in the cultivation process, such as too much water or insufficient water, too strong or too weak sunlight, too much fertilizer or lack of nutrients. We can only solve the problem of yellow leaves by figuring out the causes of yellow leaves, but how can we know what specific causes of yellow leaves?

Gardenia (details).

1. Caused by excessive water: the leaves are yellow, the young leaves are dark yellow and have no luster, but the old leaves have not changed much, and the new shoots have shrunk but do not grow.

Solution: Place the flowers in a ventilated and cool place, and wait for the excess moisture in the soil to dry out on its own before putting them back in place.

2. Yellow leaves caused by insufficient water: dry yellow, mainly in disguise: the leaf sheath is withered, the old leaves are first yellow and finally fall off, and the growth of young leaves is not greatly affected.

Solution: Since it is caused by lack of water, of course, it is to replenish the water, but pay attention to a certain degree in the process.

3. Yellow leaves caused by too strong sunlight: burning yellow, manifested as leaf sheath or leaf edge wilting, and yellow spots will appear on sunny leaves.

Solution: Move the flowers to the shade.

4. Yellow leaves caused by lack of sunlight: lack of light yellow, because the flowers are hidden in a dark place for a long time, resulting in their inability to synthesize chlorophyll, and finally the leaves are yellow and fall off.

The solution: move the flowers to a sunny place.

5. Yellow leaves caused by overnutrition: the top of the new leaves appears dry brown, and the leaves are yellow and dull.

The solution: stop fertilizing.

6. Yellow leaves caused by nutritional insufficiency: the color of young leaves gradually fades, and finally yellow.

The solution: fertilize the flowers.

Gardenia leaves are yellow, how to prevent it, listen to what flower keepers say.

Gardenia is an acid-loving plant, in addition to watering, fertilizer and other factors will cause gardenia yellow leaves, there is also a yellow leaf reason: iron deficiency yellow leaves, in daily watering can add ferrous sulfate with water to water gardenias, can effectively avoid iron deficiency yellow leaves.

To maintain gardenias, we must first provide them with acidic soil, let them grow in a semi-shaded environment, and then pay attention to the frequency of watering, as well as the appropriate amount of fertilizer, and prune in time after flowering, you can maintain it well. However, it is also necessary to pay attention to let it be dormant in winter, do not break, replace the potting soil appropriately, and carry out gardenias in summer Gardenias like acidic soil, so when maintaining, it is necessary to pay attention to the pH value of the soil is best between 5 and 6. Generally, the use of humus, peat soil and half of the garden soil can be prepared, do not add coal, otherwise it is not conducive to the growth of shading.

1. All your gardenias are growing quite luxuriant!

Yellowing of leaves**There are four: Iron deficiency. The soil contains too much limestone, alkali, phosphorus, manganese, etc., which will affect the absorption of iron by plants, affect the formation of chlorophyll, make the young leaf veins lose green, spread the whole leaf, and can be applied 1 500 ferrous sulfate water or alum water every 10 days.

Magnesium deficiency. Acidic red loam soil and potassium and ammonium are prone to magnesium deficiency, so that the veins of the old leaves in the lower part of the plant lose green and yellow, and can be sprayed with 1% to 2% magnesium sulfate solution, but excessive application of magnesium will cause calcium deficiency and hinder the development of xylem in roots and stems.

The potting soil is too wet or too dry. Summer exposure.

Also: this kind of flower needs to scatter light, so it is good for acidity. The alkali content of soil, water and fertilizer makes the plants unable to absorb iron, and affects the formation of chlorophyll, causing branches to wither, leaves to scorch, and even death.

Soil iron deficiency. Pour with ferrous sulfate aqueous solution. If it is not watered with vinegar, the soil will be slightly acidic.

Gardenia leaves are yellow, three reasons "the right medicine", evergreen and fierce leaves in all seasons.

1. Normal yellow leaves.

After the new leaves of gardenia have just germinated, because the chlorophyll content in the cells is relatively small, the leaf color is tender yellow, not very green, which is normal. Its characteristics are: leaf size, hypertrophy, leaf shape, leaf spacing are normal, the growth rate is not a problem, the new leaves are a little yellowish, but the color does not appear very abrupt, and the color change between the old leaves is more natural.

The color of the old leaves, the second old leaves, the second new leaves, and the new leaves gradually transition, from dark to light. Under the condition of reasonable light, the color of the new leaves of the gardenia will deepen day by day, about half a yard to 20 days, and the leaf color will approach the old leaves and become normal.

Solution: When the new leaves of the gardenia turn yellow normally, there is no better way than to wait. This is a major characteristic of many plants, as the leaves gradually grow, photosynthesis increases, chlorophyll synthesis increases, and the leaf color naturally changes from tender yellow to normal emerald green.

Just as a baby's ** is softer and whiter than an adult's, as you get older, your skin tone deepens, your resistance increases, and it gradually becomes rougher.

2. Water yellow. During the new leaf emergence of gardenias, if the potting soil is too watered and the potting soil is too wet for a long time, the new leaves will be obviously yellowish, which is what we often call water yellow. If the new leaves of the gardenia are yellow and the watering amount is not adjusted in time, the root system will gradually rot, and the old leaves will begin to rot, yellow, fall off, etc., and the growth rate of new leaves will become slow.

Its characteristics are: the new leaves are relatively large, thin, soft, the leaves are slender and long, the leaf spacing is widened, the growth rate is very fast, the leaf color appears a little abrupt, much more yellow than the old leaves, and the color transition between the old leaves is not natural. In the case of reasonable light, the color of the new leaves changes very slowly, and it may be a month later, and the leaf color is still yellowish.

Solution: When the new leaves of gardenia are yellow, two things should be done, the first thing is to reduce the frequency of watering, widen the watering interval, make the potting soil drier than before, and minimize water damage. The second thing is to check whether the potting soil is loose and breathable, and whether the excess water can flow out of the drain hole quickly after watering.

If the potting soil is loose and not well ventilated, it should be replaced in time. Otherwise, when the weather is hot in the summer, root rot is very easy to occur. However, it should be noted that when the yellow gardenia suddenly reduces the amount of watering, the new leaves and sprouts may wilt at noon when the temperature is high and the light is strong.

Wilt for a while, and when it gets used to the current watering frequency, it will be normal.

3. The soil is alkaline.

Gardenia is a flowering flower that prefers slightly acidic soil, and if the soil is neutral or alkaline, the new leaves will turn yellow due to iron deficiency. It is characterized by a yellowish or whitish or sometimes grayish-white color of the new leaves, with green veins that are clearly visible.

At first, the growth rate of the new leaves of the gardenia does not change much, but gradually the growth slows down, and the leaves become yellow and white. In severe cases, the leaves of the whole gardenia will turn yellow and white, which seriously affects the growth and flowering.

Gardenia leaves are yellow, how to prevent it, listen to what flower keepers say.

The yellowing of gardenia leaves may be due to improper watering, control the amount of watering, and do not accumulate water in the pot. Too low a temperature can also cause the leaves to turn yellow, so just put it indoors.

The main conditions of yellowing of gardenia leaves are: 1. Yellow of the whole plant at low temperature in winter; 2. Iron deficiency (young leaves are yellow first); 3. Red and yellow spiders are harmful (the old leaves are yellow, and the new leaves are individually curled and underdeveloped); 4. After transplanting the injured roots, the nutrients such as nitrogen and phosphorus contained in the old leaves are transferred to the new leaves, resulting in the yellowing of the old leaves, etc. Using sand as a medium is not in line with its physiological habits, should be immediately replaced with loam rich in organic matter (slightly acidic), the first water thoroughly, after trying to keep the soil moist (because the root system needs to moisten the soil, water can not be too much and can not let the soil dry) to promote the root system to resume growth, watering can be compound fertilizer (phosphorus and potassium as the main, nitrogen for the paving) with water fertilization once (a small amount of compound fertilizer, according to the size of the plant 5-10g pot) to promote new leaves; At the same time, most of the slender branches, excessively long branches, and flower branches should be cut off (to reduce nutrient consumption), and strong branches should be left to enjoy the flowers in the following year.

If there are red and yellow spiders (mainly on the back of the leaves, red or yellow, the size of the needle, carefully visible to the naked eye) should be killed, control methods: 73% alkyne mite emulsifiable concentrate 1500 times, 50% phenylbutyltin wettable powder 2000 times liquid (or other counterpart drugs in the agricultural market, flower market) and other foliar sprays once every 7 days, twice in a row.