Branches and branches are also known as gardenia. Gardenia represents pure love, so it is very popular with people. It is also cultivated in the family of flower friends, but many people don't know much about the cultivation methods of gardenia, resulting in many problems in the cultivation process, such as the yellow leaves. Today's Xiaobian is like you introduced the cultivation methods of gardenia, the reasons for the yellow leaves of Gardenia and solutions.
Cause analysis and treatment methods: 1. Acid soil culture causes yellow leaves of branches and flowers Gardenias need to scatter light when cultured in acid soil, so they like acid soil. If the soil is alkaline, gardenias will not be able to absorb iron very well, which will have a great impact on the formation of chlorophyll, and further cause withering or even death of flower branches.
Solution: so its soil must use loose and fertile acid soil, and some substances with such effect can also be added.
2. Air drying causes yellow leaves of branches and flowers (yellowish): the air is too dry, gardenia likes humid environment, so the air can not be too dry. According to experts, if the air humidity is less than 70%, it will affect the normal opening of flowers, but if it is too wet, it will cause root rot and yellow leaves.
terms of settlement: So in addition to normal watering, we also need to spray clean water frequently nearby. Another problem we need to pay attention to is that too much water can't be poured, otherwise it will affect the growth, so how can Gardenia water? When the soil is dry, tap the flowerpot with your hand. If there is an empty sound, you need to water it. The bottom of the flowerpot starts to leak and stops. It's better to add some chickens to the water poured Eggs, soymilk, etc., which is more conducive to growth.
3. Long term water shortage leads to yellow (dry yellow) leaves of branches and flowers: water shortage, withering and drying of leaf tip or edge, old leaves wither and fall off from bottom to top, but in this case, new leaves grow normally.
Solution: at this time, the water should be fully poured and permeable.
4. The leaves of branches and flowers turn yellow (burn yellow) due to exposure to the sun: Gardenia must not be exposed to the sun, otherwise the leaves will turn yellow.
Solution: put it in the shade, but not in the whole shade, because it has a certain demand for light. It's better to put it in the place where 60% of the daily light is maintained. In addition, after entering April, fertilize twice a month.
Branches bloom
5. Lack of sunlight causes the leaves of branches and flowers to turn yellow (lack of light yellow): when the sunlight is insufficient, the leaves will turn yellow or even fall off.
Solution: put it in the sun to supplement the sunshine, but move it back at noon, so as not to be exposed to the sun and cause the leaves to turn yellow.
6. Too much fertilization on branches and flowers leads to yellow leaves (rhubarb): the key to fertilization is that gardenia likes fertilizer, but it can't add too much fertilizer at one time. It must be applied with thin fertilizer and more fertilizer. It must not be greedy. Otherwise, it will cause thick branches, large leaves and thick green, which will lose its own appreciation effect.
Solution: apply fertilizer properly, and water after applying fertilizer to avoid burning seedlings.
7. The long-term lack of fertilizer in branches and flowers will cause the leaves to turn yellow (yellow): the lack of fertilizer will also cause the plants to turn yellow, such as iron deficiency. The leaves are light yellow or white, and the veins are still green.
Solution: the solution here is to spray 0.2% - 0.5% ferrous sulfate for prevention and control; in case of magnesium deficiency, the old leaves turn yellow first, then the new leaves turn yellow, and the veins are still green. At this time, 0.7% - 0.8% boron magnesium fertilizer can be sprayed for prevention and control.
Tips on the maintenance of yellow leaves, branches and flowers: 1. Gardenia is fond of fertilizer, so it is necessary to apply more thin fertilizer. No matter in the field or in the pot, the small seedlings should not apply manure water. Once every half a month, apply fat water or chicken and duck manure.
2. If the leaves turn yellow, 5 ‰ sulfuric acid hinge can be added to the fertilizer solution. Planting in the north, watering is best with stored rainwater. Or add 100g ferrous sulfate (black alum) to 5000g water to improve water quality. If you use water that is also alkaline (the water quality in the north is mostly alkaline), the soil will deteriorate within a short period of time. Every 7-10 days, pour thin alum fertilizer water to promote the color of leaves and flowers.
3. Gardenia is not very cold resistant. In the first ten days of October, "cold dew" moved indoors for winter. In winter, because the sun has been slanted and the light becomes weak, it can be placed on the windowsill facing the sun. When the temperature is lower than 0 ℃, it is generally suitable to keep it at io-12 ℃, and when it is higher than 15 ℃, it is necessary to ventilate. Otherwise, it will affect the dormancy and be disadvantageous to the growth and flowering of the next year. Water should be controlled when the temperature is low in winter. It can be watered once in 5-7 days, and the watering must be fully dry.
4. Often rake the surface of the basin soil to facilitate soil ventilation, often spray warm water to wash branches and leaves, so as not to contaminate the leaves with dust.