Why do gardenia leaves turn yellow?

Gardenia leaves - water yellow The young leaves are dark yellow and dull, the old leaves have no obvious changes, the branches are small yellow-green, and the new shoots are shrunken and not long, indicating excessive watering. Depot the flowers, put them in a ventilated and cool shade, and dry the soil ball before putting them back into the pot. Gardenia leaves - dry yellow The yellow of lack of water is different from the yellow of more water, the yellow of lack of water is the withering and dry leaf tips or edges, and the old leaves are withered and yellow from the bottom to the top, but the growth of new leaves is relatively normal.

Pay attention to watering when watering enough, water thoroughly. The leaves of gardenia - scorching yellow Strong sunlight directly shines on some shade-loving flowers (such as spider plant, hosta, etc.), which is easy to cause the leaf tips and leaf edges of flowers to wither, and the sunny part of the leaves appears yellow spots. Move to the pubic area.

Gardenia leaves - lack of light yellow for a long time in the shade environment, the leaves do not get enough sunlight, can not form chlorophyll, the whole leaves turn yellow and then fall off, supplemental light can avoid this disease. The leaves of gardenia - fat yellow The yellowing of flowers caused by excessive fertilization or excessive concentration is manifested in the appearance of dry brown at the top of the new leaves, and the general leaf surface is thick and dull, and the concave and convex are not stretched, and the old leaves are charred and fall off. Fertilization should be stopped immediately, and part of the fertilizer should be washed with plenty of washing in severe cases.

The leaves of gardenia flowers are yellow and yellow, which is manifested in the color of young leaves, which are yellow or light green, while the old leaves are more normal or gradually turn from green to yellow. Check the potting soil, if there is a dry knot, the soil should be changed, and the thin fertilizer should be applied frequently and some alum water should be poured in a timely manner.

Gardenia leaves yellowing and falling flower buds? It's all these factors that are playing tricks.

1.Old leaf yellow, which is normal metabolism;

2.The lower end of the whole tree gradually rises upward, generally because the potting soil is too dry and the environment is too dry;

3.The upper end of the whole tree gradually turns yellow in the lower manyan, usually due to the potting soil being too wet or even waterlogged.

4.The whole leaf gradually turns yellow, leaving only the veins green, due to the lack of iron in the potting soil.

This is generally the case, of course, if left in the shade for a long time, the leaves will also turn yellow.

1. Excessive watering leads to leaf yellowing.

The end of the gardenia flowering period is just in time for the arrival of autumn, and many flower keepers feel that the weather is cool and the gardenia should not be as delicate as in summer, so they began to water vigorously.

Symptoms: Slowly turning yellow from the bottom leaf, there are basically no yellow leaves at the top, the veins of the leaves are normal green, and the other parts of the leaves are yellow.

Rescue measures: Poke the soil a few times with chopsticks, loosen the soil, and then put it in a well-ventilated place to speed up the evaporation of the water accumulated in the soil.

Second, the soil is alkaline and the local belt is removed, resulting in leaf yellow.

Friends in the north should have a deep understanding that gardenias are really difficult to raise. This is mainly because the alkaline soil in the north is not suitable for the growth of gardenias, and yellowing of leaves has become commonplace.

Symptoms: The veins of the new leaves are green, but the mesophyll is yellow-green, while the old leaves are basically normal.

Rescue measures: Prepare a plastic bottle, add 100g of citric acid, put a rusty iron nail and fill it with water. When the rust disappears and the solution turns pale green, water the gardenia 500 times with water, and use it once every 10 days, and the yellow leaves will slowly disappear.

Gardenia yellow leaf measures.

3. Excessive fertilization leads to leaf yellowing.

In order to make gardenias grow fast and strong, many people like to add some fertilizer to the water every time they are watered, and the more times they are, they will find that there are more and more yellow leaves of gardenias.

Symptoms: The old leaves first start to turn yellow from the veins, and gradually spread to the whole leaf, and in severe cases, the whole plant will turn yellow.

Rescue measures: Flush the potting soil with large water, or use the soaking method to dilute the fertilizer that is too concentrated in the soil.

Generally speaking, people will raise flowers and plants at home, not only to beautify the environment, but also to cultivate sentiment. It's May, and the gardenias are in full bloom. When cultivating gardenias, you suddenly find that the leaves of gardenias are yellow, and it must be that the gardenia is sick.

What is the cause of yellowing of gardenia leaves.

The leaves of gardenias are yellow, mainly for the following reasons:

1. Strong direct sunlight. When the direct sunlight hits the shade-loving gardenias, the leaf tips and leaf margins of the mast flowers will wither, and yellow spots will appear on the sunny part of the leaves. Just move the gardenia to a shady place to dig it can be solved.

2. Not getting enough sunlight. Gardenias are placed in a shady environment for a long time, and the leaves do not get enough sunlight, so they cannot form chlorophyll, and the leaves of the entire gardenia plant turn yellow and fall off one after another.

3. Excessive watering causes the leaves to be dark yellow. The young leaves of the mast flower are dark yellow and have no luster, the old leaves have no obvious changes, the branches are small yellow-green, and the new shoots are shrunk and not long, which indicates that there is too much watering. Spring slip wide.

4. Lack of water can also cause gardenia leaves to turn yellow. The leaves of gardenias are shiny and dry at the tips or edges, and the old leaves are yellowish from the bottom up, but the new leaves grow more normally. This shows that the mast flowers are dry yellow.

5. Insufficient soil fertility. The young leaves of the mast flower become lighter in color, yellow or light green, and the old leaves are more normal or gradually turn from green to yellow, indicating that the fertility of the land is not enough at this time.

6. Excessive fertilization. Excessive fertilization or excessive concentration causes yellowing of mast flower leaves, the top of new leaves will appear dry brown, the leaf surface is generally hypertrophied and not luster, and the old leaves are charred and fall off.

There are several reasons why the leaves of gardenias turn yellow.

1. Too much water: Gardenia likes to grow in a humid environment, but it is not resistant to waterlogging, if too much watering and air humidity is too high, its leaves are prone to yellowing, at this time you need to do a good job of ventilation management, so that the excess water evaporates quickly, and then you also need to control the watering to keep the soil slightly moist.

2. Insufficient nutrients: Gardenia likes to grow in a humid environment, but it is not resistant to waterlogging, if you water too much and the air humidity is too high, its leaves are prone to yellowing, at this time you need to do a good job of ventilation management, so that the excess water evaporates quickly, and then you also need to control the watering to keep the soil slightly moist.

3. The temperature is too low: gardenia likes to grow in a warm environment, it is not resistant to low temperatures, if the temperature is too low, resulting in frost damage to the plant, its leaves will also appear yellowing, so in winter to do a good job of keeping warm, it is best to move to a warm place indoors to maintain, so as to avoid the yellowing of its leaves.

1. Improper water: if the usual watering is not enough, it may make it produce yellow leaves, in addition, it should not be too much watering in the process of planting, the water in the pot or the pot soil is too wet, which will cause the young leaves to be dull, slow growth, and the old leaves are yellow-green, gradually withering.

2. Improper light: too strong or too much light will cause the leaves of the plant to turn yellow. If you are exposed to direct sunlight for a long time, yellow spots will appear on the leaf surface, but if you put it in a shady environment for a long time, the leaves will fall off because you can't get enough sunlight, so you should make up the light in time.

3. Improper fertilization: The fertilization concentration of gardenia planting will cause the plant to turn yellow, the tip of the new leaf will be yellow-brown, the leaf surface will be uneven and lusterless, and the old leaves will gradually wither and fall off. At this time, it is necessary to supplement fertilizer in time, but before that, it is necessary to judge which fertilizer should be supplemented according to the performance of the plant, as follows:

Nitrogen deficiency: The plants are short of nitrogen and the leaves are yellow, and the new leaves are small and brittle.

Potassium deficiency: When a plant is deficient in potassium, the old leaves turn from green to brown.

Iron deficiency: At the beginning, the leaves are pale yellow or white, and the veins are still green, and in severe cases, the veins are also yellow or white, and eventually the leaves dry up and die.

Magnesium deficiency: yellowing begins to develop from old leaves to new leaves, and the leaf veins are still green, and the leaves fall off and die in severe cases.

Phosphorus deficiency: The old leaves are purplish-red or dark red.

4. The temperature is too low: Gardenia can tolerate low temperatures, but too low temperature will cause yellowing of leaves. In the process of gardenia maintenance, it is easy to frostbite in winter, and if you do not take warm measures at night in early spring and early winter, it is easy to freeze and regret the plant.

5. Treatment method: slowly adapt to the environment: most of the gardenias that have just been bought back from the market are taken out of the greenhouse, and it takes a period of adaptation to the new environment.

If the environmental difference is too large, it will cause yellow leaves, which is an uncontrollable factor. Therefore, the yellowing of the leaves should be observed for a period of time, and the maintenance should be taken care of during this period.

6. Reasonable watering: if there is a shortage of water, it should be replenished in time, and if there is too much water at ordinary times, reduce the frequency and amount of watering.

7. Acidic water is more suitable: Gardenia likes acidic soil, and the tap water in the addition is alkaline or neutral, so some acidic substances are often added when watering, such as edible vinegar and lack of n-citric acid.

8. Open windows for ventilation: Gardenias maintained indoors need to be ventilated frequently to ensure that the environment is bright, and the plants are placed by the window for maintenance.

9. Reasonable fertilization: The various manifestations of gardenia fertilizer deficiency introduced above, according to the growth state of the plant, fertilizer is appropriately supplemented to ensure the balance of each nutrient. If too much fertilizer is applied, rinse immediately with water, or repot and change the soil.

10. Prune yellow leaves: gardenia woody stems, when yellow leaves appear, directly cut off the yellowed branches, which can ensure the normal growth of the main trunk, careful maintenance, and soon after, new leaves will grow.

1. Iron deficiency and alkaline: Gardenia likes to be slightly acidic, lack of iron, and alkaline water and soil will make the leaves yellow.

2. Soil compaction: Soil compaction is not breathable, which will make the root system breathe poorly and cause yellow leaves.

3. Excessive watering: Gardenia is not resistant to moisture, and if watered frequently, it will cause water to accumulate in the soil, resulting in rotten roots and yellow leaves.

4. Lack of nutrients: Gardenia lacks nutrients during growth, and it will also have yellow leaves.

Reason: Most plants will have a lot of problems if they are in the case of stagnant water for a long time, and gardenias are the same, and the leaves will turn yellow in stagnant water.

Solution: The frequency and amount of watering should be reduced, and the watering method should be changed. If you usually water it, you can wait until the soil is completely dry before watering it, just water it thoroughly.

Reason: It is also necessary to pay attention to fertilization, if the plant is deficient in iron, the leaves will turn yellow.

Solution: Apply fertilizer containing iron to it in time, apply ferrous sulfate to dilute it with 300 times the water and spray it on the line, according to the frequency of half a month for two months, and apply it once a month in the later stage.

Solution: Timely transfer it to a location with good light for maintenance, the growth of the plant is indispensable, and it should receive about four hours of light every day.