What should I do if the leaves of the gardenia keep yellowing?

During the growth of gardenias, the leaves often turn yellow, and the reason is mostly caused by poor cultivation management. Too much water, too little sunlight, too much or too little fertilizer will cause yellowing of leaves, but the yellowing situation is different, and the causes should be carefully observed and analyzed, and corrected.

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 shrunk 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.

Dry yellow. The yellow of lack of water is different from the yellow of 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.

Seared yellow. Strong sunlight directly onto some shade-loving flowers (such as spider plants, hostas, etc.) is easy to cause the leaf tips and leaf margins of flowers to wither, and the sunny part of the leaves to appear yellow spots. Move to the pubic area.

Lack of light yellow. If the leaves are shaded for a long time, the leaves will not get enough sunlight to form chlorophyll, and the whole leaves will turn yellow and then fall off, and this disease can be avoided by supplementing light.

Fat yellow. The yellowing of flowers caused by excessive fertilization or excessive concentration is manifested in 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 scorched and yellow. Fertilization should be stopped immediately, and part of the fertilizer should be washed with plenty of washing in severe cases.

Lack of fat yellow. It is manifested in the color of young leaves becoming lighter, yellow or light green, while old leaves are more normal or gradually turning 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.

The leaf color is yellowish, and the growth is normal because of too much light.

The water quality in the north is biased towards rainwater or fermented rice washing water.

Reason: Poor ventilation is the main cause of 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.

Reason: Gardenias prefer acidic soils and have a higher iron requirement than other 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**.

Causes: Nitrogen deficiency in most plants will cause 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.

Reason: Water accumulation in gardenia pots 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.

Reason: The potting soil lacks nutrients or compaction, which makes it difficult for the roots to absorb water, and also leads to yellowing of the 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.

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.

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 yellow, water for a long time potting soil is too wet will cause leaf yellow root rot, solution, strengthen fertilizer and water management once a week, watering once a week after fertilizer application, often watering some ferrous sulfate, so that the leaves will be green and shiny, you think my plan can, please adopt my method.

It is most likely an iron deficiency. You can try to spray some 1 1000 ferrous sulfate solution on the foliar surface for emergency relief, and you can also add some ferrous sulfate when applying fertilizer, so that the formation of organic iron is easier to absorb.

The leaf color is yellowish, and the growth is normal because of too much light.

The water quality in the north is biased towards rainwater or fermented rice washing water.

Many reasons:

1. Drought and waterlogging (pay attention to adjusting the appropriate watering).

2. Soil alkaline (regular watering of ferrous sulfate solution).

3. The light is too strong (placed in a scattered place for maintenance).

4. Nitrogen deficiency fertilizer or too much fertilizer (adjust fertilizer according to the situation).

5. Raw fertilizer is applied, that is, organic fertilizer that has not been fermented (soil needs to be changed).