What to do if the leaves of a gardenia are yellow, what to do if the leaves of a gardenia are yellow

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 are yellow, first of all, consider whether it is caused by too much water, and secondly.

Consider the impact of pests and diseases. During the usual maintenance, pay attention to water and fertilizer management, and apply water-soluble fertilizer to promote its flowering and healthy growth in time.

How gardenias are maintained.

1. Potting soil. Gardenias prefer acidic soils, with a suitable pH of 5 to 6, so prepare suitable soil before planting. If the pH of the soil is not suitable, it will be troublesome to maintain it later.

Cultivation soil usually chooses humus soil, peat soil and half of the garden soil, do not use cinder, or directly buy gardenia special soil, which is convenient and practical.

2. Fertilization. Gardenias like fertilizer, and when planting, rotten cake fertilizer is added to the soil as base fertilizer.

During the growing season, it is made of cake fertilizer and ferrous sulfate, and it is watered once a week. Organic liquid fertilizer with full nutrition can also be used.

Top dressing 1 2 times at the budding stage, watering the aqueous solution of potassium dihydrogen phosphate in fertile leaves, can make the flowers hypertrophied and fragrant.

When the temperature is above 35 in summer and 15 in autumn, stop fertilizing.

3. Watering. Gardenias prefer moist and moist environments. 4 During the growing period in September, keep the potting soil moist, watering to see dry and wet, and spray the leaves at night to keep the humidity. If the plant is growing too vigorously, do not water it at night, and water it in the morning when the sun comes out.

In the northern alkaline water area, when watering, leave the tap water for one day and then water. 3 5 days, pour a little citric acid aqueous solution, can keep the leaves green.

Fourth, light. Gardenias need plenty of sunlight to grow, and if they are left in the semi-shade for a long time, the flower branches will be thin and slender. In maintenance, except for the need for shade at noon in July and August and winter hibernation, other times can be maintained in the sun.

Gardenias like warm, moist semi-shaded environment, slightly shade-tolerant, afraid of strong light exposure, summer should be placed in the shade or under the shade of flowers and other places with scattered light maintenance.

There's nothing big wrong with this gardenia.

Gardenias will be better to maintain their leaf color in a slightly shaded area; However, the alkaline soil is a problem, and gardenia prefers slightly acidic soil rather than alkaline soil; In the growing season, the ferrous sulfate solution can be poured every 10-15 days, and the ferrous sulfate solution can be poured every 20 days or so in other seasons to prevent soil alkalization.

If it is really yellowed due to iron deficiency, the first yellow is the slightly tender leaves, and the symptoms are: at the beginning of the leaves, except for the veins to keep green, the other parts of the leaves lose green, and in severe cases, the whole leaf loses green. Yellowing begins from old leaves, and magnesium deficiency is generally common.

Gardenia potted soil is prepared with 40% garden soil, 15% coarse sand, 30% manure soil, and 15% humus soil.

Keep the potting soil slightly moist in summer; Watering in spring and autumn should be dry and wet; In winter, it is advisable to control watering and be drier. Excessive watering can also cause yellow leaves.

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.

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? 2 "tricks" to solve, the leaves are green, and the flowers are numerous.

If the leaves of the gardenia are yellow, soak them directly in clean water, and then prune the yellowing area slightly.

The yellowing of the leaves means that there is too much watering, and it is okay to stop watering for two days, and secondly, lack some elements, get a little fertilizer containing ferrous sulfate.

After the leaves turn yellow, the yellowed leaves should be treated, pay attention to regular ventilation, reasonable watering and fertilization, ensure sufficient sunlight, and do not water too much water to prevent root rot

They can be watered more often to ensure their nutrient intake. And it is important to give them enough sunlight and the right amount of water, and prune their leaves to ensure their nutrient intake.

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.

The yellowing of gardenia leaves is mainly due to the following conditions:

1) The manifestation of iron deficiency and iron deficiency is that the veins of delicate leaves lose green and yellow, and the whole leaf gradually turns yellow-white to white.

2) Magnesium deficiency manifestation, the veins of the lower old leaves of the plant first lose green and yellow.

3) Soil stagnant water, poor aeration, and pest and disease damage will cause gardenia leaves to turn yellow.

Remove the yellow leaves, loosen the soil and fertilize it, and spray a small amount of medicine.

Water yellow: If the young leaves of gardenia are dark yellow and not shiny, and its old leaves are not obviously changed, the branches are very small yellow-green, which indicates that we have watered it too much, you can depot the gardenia and then place it in a ventilated and cool environment to let it dry the soil mass and then put it back into the pot.

Dry yellow: the yellow of lack of water is not the same as the yellow of overwatering, the yellow of lack of water is the tip of the flower and leaf of the gardenia or its edge is dry and dry, and the old leaves will fall off from top to bottom, but the growth of new leaves is relatively normal, so generally only need to pay attention to watering it enough and watering it thoroughly.

Lack of light yellow: Gardenia is placed in a shaded environment for a long time, the leaves do not get enough sunlight, can not form chlorophyll, the whole gardenia leaves turn yellow and then fall off, so you need to give gardenia more light to avoid this disease.

Lack of fat yellow: It is manifested in the color of the young leaves of gardenia becoming lighter, yellow or light green, while the old leaves of gardenia 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.

It should be a problem with the soil, you see if it is too wet underneath, if the soil is too wet and sticky, the water is not easy to flow out from the bottom and it is easy to cause rotten roots, if this is the case, quickly change the soil.

On the one hand, it may be that the soil pH value is too high, and some ferrous sulfate solution (spray foliar surface; On the other hand, it may be too hot, keep it in a cool place and not in direct sunlight.

Gardenia leaves yellow? 2 "tricks" to solve, the leaves are green, and the flowers are numerous.

1. If the usual management is normal, observe whether there are new leaves that begin to germinate.

Evergreens usually change their leaves in the spring, when the yellowed leaves are basically old.

The germination of new leaves is basically synchronized with the shedding of old leaves.

2. The leaves in the middle and lower parts of the branches of the plant are mostly old leaves.

3. If the above is excluded, sometimes too much fertilizer and too much water are also easy to cause yellow leaves. (Yellow leaves at this time include new leaves as well as growing leaves.) ）

4. Gardenia is a southern crop, like acidic soil, if the lack of iron will also cause yellowing of leaves, you can try to use ferrous sulfate to prepare a solution for watering, generally sold in the flower market, a dollar a pack.

Probably the reason why the gardenia has just moved out of the greenhouse and is not adapting. Last year I bought a gardenia with flower buds, and the leaves turned yellow before they opened, starting to yellow from the veins and falling out of the new leaves.

If you pour too much water, you have to see dry and wet.

Touching the soil, is there a lack of water, gardenias are super water-loving, watering and looking slowly, but also very light-loving, it is difficult to bloom indoors, and it is easy to fall leaves. If you let it grow outside, it will grow well and bloom very fragrantly.

Lack of sunlight and nutrients, and too much watering.