Why do gardenia leaves turn yellow?

There are many reasons for the yellowing of gardenia leaves, and the common one is caused by "chlorosis" caused by physiological diseases. Whether potted or cultivated in the ground, if the soil is alkaline or iron deficient, it is more common. Iron deficiency is characterized by the loss of green and yellowing between the veins of young leaves, seriously yellowing the leaves of the whole plant, and even scorched leaves and branches withered, resulting in plant death. Therefore, gardenia planted in the ground had better choose well drained, loose and fertile acid soil; pot cultivation should use 2 parts of rotten leaf soil and 1 part of garden soil, and it would be better to add some mud mixture. If yellow leaf disease occurs during the growing period from May to September, 0.1% ferrous sulfate or 0.5% ammonium sulfate can be added to the fertilizer solution and applied once or twice a month.

Gardenia likes sunshine, but it is not suitable to accept strong direct sunlight. Those planted on the ground should have a shady environment for big trees, which can make their leaves green and shiny. Potted plants should be kept in shade, not on the balcony or basking platform, otherwise they are vulnerable to burns that cause yellow and scorched leaves.

Gardenia likes to be wet and fat, especially in summer potted plants should pay attention to watering the pot soil in the morning and evening to keep the pot soil moist. In the hot summer season, spray foliage with clear water every morning and evening, and sprinkle water to the nearby ground to increase air humidity. When Rain Water is more, he should pay attention to drainage, otherwise it will make the roots rotten and leaves yellow. During the growing period, 20%-30% rotten cake fertilizer and water or human feces and urine can be applied every month. Especially in the dry season of summer and autumn, combined with watering and applying available phosphorus and nitrogen fertilizer, the leaves can be evergreen and the flowers and leaves will be beautiful.

Why the leaves of Gardenia turn yellow? how do the leaves of Gardenia turn yellow and fall off?

Gardenia leaves are evergreen all the year round, flowers are fragrant and elegant, green leaves and white flowers are particularly beautiful and lovely. It is suitable for front steps, poolside and roadside configurations, can also be used as hedges and potted plants to watch, flowers can also be used for flower arrangement and wear decoration. Then why are the gardenia leaves yellow? Gardenia leaves yellow fall off how to do? The following wed114 wedding network editor brings you the details.

Why the leaves of Gardenia turn yellow

Improper moisture

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

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.

Improper fertilization

In the process of gardenia planting, fertilization concentration will cause plant yellowing, the tip of new leaves will be yellowish brown, the leaves will be uneven and glossy, and the old leaves will wither and fall off gradually. At this time, you need to replenish the fertilizer in time, but before that, you need to judge which fertilizer should be added according to the performance of the plant, as follows:

Nitrogen deficiency: plant nitrogen deficiency simple leaves yellowing, new leaves small and brittle.

Potassium deficiency: when plants lack potassium, the old leaves change from green to brown.

Iron deficiency: at the beginning, the leaves are yellowish or white, the veins are still green, and in severe cases, the veins are also yellow or white, and finally the leaves dry up and die.

Magnesium deficiency: yellowing gradually develops from old leaves to new leaves, and the veins are still green. When the leaves are serious, the leaves fall off and die. ⑤ phosphorus deficiency: the old leaves were purplish red or dark red.

The temperature is too low

Gardenia jasminoides can tolerate 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.

What if the leaves of gardenia turn yellow and fall off?

Slowly adapt to the environment

Most of the gardenia just bought back from the market are taken out from the greenhouse, and it takes a period of adaptation to change to 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.

More watering

Gardenia likes water, warm south wind and humid environment, but in the north, dry weather and insufficient air humidity 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.

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.

Window ventilation

Indoor maintenance of gardenia needs regular ventilation to ensure that the environment is bright, put the plant on the window for maintenance.

adequate manuring

The various manifestations of fertilizer deficiency of Gardenia jasminoides are introduced above, and fertilizers are properly supplemented according to the growth status 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.

Prune yellow leaves

Gardenia woody stem, when there are yellow leaves, directly cut off the yellowed branches, can ensure the normal growth of the trunk, careful maintenance, soon, grow new leaves.

Why do gardenia leaves turn yellow?

Why the leaves of Gardenia turn yellow?-there are many reasons for the yellowing of leaves of Gardenia. The common cause is the "chlorosis" caused by physiological diseases. Whether potted or cultivated in the ground, if the soil is alkaline or iron deficient, it is more common. Iron deficiency is characterized by the loss of green and yellowing between the veins of young leaves, seriously yellowing the whole leaves, and even scorched leaves and branches withering, resulting in plant death. Therefore, gardenia planted in the ground had better choose well drained, loose and fertile acid soil; potted plants should use 2 parts of rotten soil and 1 part of garden soil, and it would be better to add some mud mixture. If yellow leaf disease occurs during the growth period from May to September, 0. 5% can be added to the fertilizer solution. 1% ferrous sulfate or 0.5% sulfate hinge, applying 1 Mel twice a month can get better results. Gardenia likes sunshine, but it is not suitable to accept strong direct sunlight. Those planted on the ground should have a shady environment for big trees, which can make their leaves green and shiny. Potted plants should be kept in shade, not on the balcony or basking platform, otherwise they are vulnerable to burns that cause yellow and scorched leaves. Gardenia likes to be wet and fat, especially in summer potted plants should pay attention to watering the pot soil in the morning and evening to keep the pot soil moist. In the hot summer season, spray foliage with clear water every morning and evening, and sprinkle water to the nearby ground to increase air humidity. When Rain Water is more, he should pay attention to drainage, otherwise it will make the roots rotten and leaves yellow. During the growing period, 20% to 30% rotten cake fertilizer and water or human feces can be applied every month. Especially in the dry season of summer and autumn, combined with watering and applying available phosphorus and nitrogen fertilizer, the leaves can be evergreen and the flowers and leaves will be beautiful.