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AbstractThere are many reasons for the yellowing of gardenia leaves: if the environment is uncomfortable, it needs to be transferred to a ventilated and light-permeable place in time; If the nutrients are insufficient, flower fertilizer needs to be supplemented; If the wrong fertilizer is applied, nitrogen fertilizer needs to be applied instead; If it is overwatered, it needs to be drained and controlled; If it is a soil problem, it is necessary to change the pot and loosen the soil.
1. Poor ventilation is the main reason for the yellowing of gardenia leaves, which not only affects the growth of plants, but also leads to various pests and diseases.
Solution: Place the plants in a ventilated place, such as balconies and window sills, which not only improves air circulation, but also has enough light.
2. Gardenias prefer acidic soils, and their iron requirements are higher than those of ordinary plants. Therefore, insufficient iron content can easily lead to poor growth, yellowing of leaves, etc.
Solution: You can prepare some ferrous sulfate solution, dilute it and spray it on the foliage**.
3. Nitrogen deficiency in most plants will lead to yellowing of leaves, if the plant looks unenergetic, the branches are thin, and the leaves are small, it is likely to be nitrogen deficiency.
Solution: Compound fertilizer based on nitrogen fertilizer is used for fertilization in spring and summer. However, the amount of fertilizer should not be too much, and the nitrogen content is too high, which will lead to the situation that the branches and leaves grow but do not bloom.
Fourth, the water accumulation in the gardenia pot can easily lead to root rot, and then the leaves will turn yellow.
Solution: Remember to drain water in time after overwatering, and pour excess water out of the pot to avoid water accumulation. But be careful not to hurt the flower branches when pouring the water.
Fifth, the potting soil lacks nutrients or compaction, which makes it difficult for the roots to absorb water, and also leads to yellowing of leaves.
Solution: Repot and change the soil every year, choose the right size pot, and use loose and fertile soil. In addition, frequent soil loosening can also help.
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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.
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1. Improper water If the usual watering is not enough, it is possible to make it produce yellow leaves, in addition, in the planting process watering should not be too much, the pot water or pot soil is too wet, will cause the young leaves to be dull, slow growth, old leaves are yellow-green, and gradually wither.
2. Improper light If the light is too strong or too much, it 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 yellowish-brown, the leaf surface is uneven and lusterless, and the old leaves 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 get frostbite in winter, and if you do not take warm measures at night in early spring and early winter, it is easy to frostbite the plant.
The various manifestations of fertilizer deficiency in gardenia 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.
6. 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.
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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.
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Gardenias are like this, if they are not raised well, the leaves will turn yellow, I have raised a lot of them like this, once they are yellow, it is difficult to save. What I said on the Internet doesn't necessarily work, and I didn't look it up on the Internet before. According to me, there is no good way, and it is purely my own experience to wait for the next year to send out new leaves.
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It may be related to the soil, try pouring some ferrous sulfate.
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I just bought it, and it's a little yellow when I come back, remember not to go directly in the sun, hand over some ferrous sulfate, and then don't dry and moisturize it, and it will be yang, I'll do it now.
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.
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. >>>More
Remove these yellowing leaves, put them in a cool and ventilated place, water them more, and loosen the soil frequently. It may be because of the long period of sun exposure, the temperature at home is relatively high, and the air is relatively dry.
Friends who have raised gardenias know that gardenias are very easy to yellowing leaves, there are many reasons, a flower friend who has raised gardenias for 10 years, summarized some of the reasons why gardenia leaves are yellow, you can compare them according to your own situation, and then solve them in a targeted manner, you can do not ask for people, and you can also solve the problem of yellow leaves. >>>More
1. The reason why the leaves of gardenia are black and wilted. >>>More