The cause and solution of yellowing of leaves of Gardenia jasminoides

1. Lack of iron and magnesium.

When plants are growing, some necessary trace elements can not be lacking. Once lacking, the leaves will lose green and turn yellow.

Leaflet gardenia leaves yellowing should be carefully observed, if the yellow from the edge to the vein development, serious veins also fade green, leaves withered and yellowed, it means that iron deficiency caused yellowing.

If the leaflet gardenia leaves turn yellow because the old leaves in the lower part of the branch are green and yellow, while the upper leaves are still green, it is caused by magnesium deficiency.

Solution: know what to lack and what to make up accordingly. If it is iron deficiency, you can pour 500 times diluted ferrous sulfate or black alum every ten days. If it is magnesium deficiency, 1% to 2% magnesium sulfate solution can be sprayed on the leaf surface every 10 days. After the yellowing is reduced, the dosage can be reduced and the interval time is longer, because too much magnesium will hinder the development of root xylem.

2. Excessive fertilization.

If too much fertilizer is applied in the breeding process, it will also make the leaves yellow. The performance is to first turn yellow from the vein of the leaf, and then slowly spread to the whole leaf.

Solution: use a lot of water to irrigate the root or change the basin to change the soil to reduce the fertilizer content in the basin soil.

3. Overwatering.

Friends who raise lobular gardenia for the first time will encounter this situation, because they are not familiar with the knowledge of conservation, and the leaves are usually yellowed due to overwatering. It shows that the edge of the old leaf is yellow and the leaf vein is green.

Solution: reduce watering, remove the yellowing old leaves, and wait for the new leaves to grow.

Gardenia leaves yellow is what reason _ gardenia leaves yellowing how to do?

Gardenia is a very common flower plant in people's life, and the most attractive thing is the fragrance of its flowers when they are in full bloom, which is why many people like to raise gardenia very much. In the process of breeding gardenia, there will always be some problems, such as gardenia leaves yellowing, gardenia fragrance poisonous and so on. Today, let's take a look at what is the reason why the gardenia leaves are yellow, and how to do the gardenia leaves yellowing? [introduction of Gardenia jasminoides] Gardenia is also known as gardenia, jade lotus, white toad, astragalus and so on. It is a perennial evergreen shrub plant of Rubiaceae. Gardenia is mainly distributed in Sichuan, Jiangxi, Jiangsu, Anhui, Zhejiang, Hunan, Taiwan, Yunnan, Fujian, Guangdong and other places. Its branches and leaves are very luxuriant, and the leaves are evergreen all the year round, and the flowers in full bloom will exude a charming fragrance, which is called an important plant for garden ornamental. Gardenia can not only watch the flowers, but also its fruits, leaves and roots have very good medicinal value, such as detoxification and cooling blood, clearing heat and diuresis, purging fire and eliminating annoyance, and so on. [growth habits of Gardenia jasminoides] Gardenia likes to grow in a sunny, warm and humid environment, its cold resistance is better, it is more resistant to semi-overcast, and is afraid of stagnant water. It is suitable for growing in loose, fertile, well-ventilated acidic sandy soil, avoiding the direct exposure of strong light in the process of breeding, and suitable for growing in a more hidden environment. Gardenia suitable for growth temperature is 16 degrees Celsius, in winter the temperature can not be lower than zero degrees Celsius, otherwise it will be dormant. It is suitable to be used as a potted flower plant in Northeast, Northwest, North China and other areas. It is a very typical acid flower plant. What is the reason for the yellowing of gardenia leaves. Improper watering: gardenia is afraid of stagnant water, too much water during breeding will make the tender leaves dim, the leaves will become yellowish green, and the new leaves will not grow. two。 Improper lighting: in the case of strong light, the leaves of gardenia will appear macula, and the leaves will also appear yellowing. If the gardenia is cultured in a shady place for a long time, the gardenia will get inappropriate light, and the leaves will turn yellow or fall off, so photosynthesis should be carried out in time. 3. Improper fertilization: when cultivating gardenia, the thick and high fertilizer will also cause the plant leaves to be yellowed, generally the top of the new leaves will appear brown, although the leaves are relatively thick but do not have any luster, and can not completely open, the old leaves will appear scorched yellow hanging orchid. Insufficient fertilizer can also cause yellowing or shedding of gardenia leaves. In the case of nitrogen deficiency in gardenia, the leaves will turn yellow, and the new leaves grow very small and brittle. In the case of potassium deficiency, the old leaves will turn brown, thus affecting the ornamental value. In the case of iron deficiency, the leaves will slowly turn yellowish to yellow or white, and eventually wither away. In the case of magnesium deficiency, the old leaves will first turn yellow, then the new leaves will turn yellow, and finally the leaves will wither and fall completely. In the case of phosphorus deficiency, the old leaves will turn fuchsia or dark red. 4. Temperature discomfort: too low temperature can cause yellowing of leaves. Be prepared in winter and mainly keep warm in early spring or early winter. What if the leaves of gardenia turn yellow. If the leaves are yellowed due to excessive watering, you can put the plants in a pot after they are propagated in a ventilated place to dry. The yellowed and withered plants will fall off naturally, and the new leaves will grow more normally and should be watered enough. two。 If the light is too strong to cause the leaves to turn yellow, you can put the gardenia in a more hidden place. And if it is the case of insufficient light, give sufficient light. 3. If the concentration of fertilizer is too high, it can reduce the concentration of soil fertilizer, ferrous sulfate can be used in the case of iron deficiency, and boron and magnesium fertilizer can be used in the case of magnesium. 4. Gardenia should not grow at a temperature below zero degrees Celsius in winter, otherwise the plant will be dormant or freeze to death, so be prepared against freezing.

More information about what pink roses represent, how to raise mosquito repellent grass, how to raise magnolia flowers, how to raise canna.

Analysis on the causes of yellowing of Gardenia jasminoides leaves

Xiaobian carefully selected and shared for you about gardenia leaves yellowing how to do? Gardenia leaves yellowing treatment of the article, so that you know more about flowers, to have a look!

Analysis on the causes of yellow leaves of Gardenia jasminoides

1. Improper water: gardenia should not be watered too much in the process of planting. Stagnant water or soil in the basin is too wet, which will cause young leaves to be dim, grow slowly, and old leaves show yellowish green and wither gradually.

2. Improper lighting: too much light or too much light will cause the leaves of the plant to turn yellow. If the strong light is direct for a long time, there will be macula on the leaf surface, but if it is placed in a shady environment for a long time, the leaf will fall off because it does not get enough sunlight, so it is necessary to replenish the light in time.

3. Improper fertilization: during the planting of Gardenia jasminoides, the plant will be yellowed, the leaf tip of the new leaf will be yellowish brown, the leaf surface will be uneven and dull, and the old leaf will wither and fall off gradually. Fertilizers need to be replenished in time at this time, but before that, it is necessary to judge which fertilizers should be replenished according to the performance of the plant.

4. The temperature is too low: gardenia can withstand low temperature, but too low temperature will cause leaf yellowing. In the process of gardenia maintenance, it is easy to frostbite in winter, and it is easy to frostbite plants if warm measures are not taken in early spring and early winter night.

Yellowing treatment of Gardenia jasminoides leaves:

1. Slowly adapt to the environment: most of the gardenia just bought from the market are taken out from the greenhouse, and a period of adaptation is needed in the new environment. If the environmental difference is too large, it will cause yellow leaves, which is out of control at this time. Therefore, the leaves yellowing first observe for a period of time, during this period of good maintenance.

2, more watering: gardenia like water, like the warm south wind, like the humid environment, but in the north dry weather, lack of air humidity, these will cause the leaves of the plant to turn yellow. Whether in the south or north, the best way is to put the plant in a large tray, fill the tray with water, and pay attention to sprinkling water on the leaves every day, so that the leaves absorb water, full and shiny.

3, acidic water is more suitable: gardenia likes acidic soil, and the tap water is alkaline or neutral, so some acidic substances are often added when watering, such as edible vinegar and citric acid.

4, window ventilation: indoor maintenance of gardenia needs regular ventilation to ensure that the environment is bright, plant maintenance on the edge of the window.

5. Rational fertilization: various manifestations of lack of fertilizer in Gardenia jasminoides, properly supplement fertilizer according to the growth state of the plant to ensure the balance of each nutrient. If you fertilize too much, immediately water and rinse, or turn the basin to change the soil.

6, pruning yellow leaves: gardenia woody stem, when yellow leaves appear, directly cut off the yellowed branches, can ensure the normal growth of the trunk, careful maintenance, soon, grow new leaves.

The above is the relevant introduction of this article, I believe you have a simple understanding of this after reading it, if necessary, you can continue to pay attention to the No. 1 home network to learn more information.