Gardenia, also known as mast, Ningbo area is called magnolia, originated in China. Rubiaceae is an evergreen shrub. Gardenia has luxuriant branches and leaves, and its beautiful tree shape is deeply loved by the public. At the turn of spring and summer, gardenia blooms, with strong fragrance and refreshing. But in the process of cultivation, it is inevitable that gardenia leaves will turn yellow. The following section analyzes the problem of Gardenia leaves turning yellow.
Cause analysis and treatment methods: 1. Too much water causes the leaves of mast flower to turn yellow (water yellow): too much water during the planting process of mast flower, then the young leaves will be dim, the old leaves will not be affected, but the leaves will turn yellow green, and the new leaves will not grow.
Solution: put the flower out of the basin in a cool and ventilated place, wait for the soil to dry, and then put it back into the basin. In case of water shortage, the tip or edge of leaves will be withered and dried, the old leaves will be withered and shed from bottom to top, and the new leaves will grow normally. At this time, it is necessary to irrigate them fully and permeable.
2. Water shortage for a long time results in yellow leaves (dry yellow): Gardenia is water loving and easy to grow in the south wind. However, due to the dryness and lack of air humidity in the north, it will cause yellow leaves.
Solution: therefore, it is best to put Gardenia in a large tray, the tray around the water, at the same time, pay attention to the surface of the leaves every day to spray water, so that the leaves fully wet.
3. Poor ventilation leads to yellow leaves (burning yellow): Gardenia growth environment, need to be ventilated and moist, bright light. If you often do not open the window, there will also be yellow leaves.
Solution: remember to open the windows every day for ventilation.
4. Too low temperature will cause the leaves to turn yellow: too low temperature will also cause the leaves to turn yellow.
Solution: so we should pay attention to antifreeze in winter and keep warm in early spring and early winter.
5. Too much fertilizer on the flower causes the leaves to turn yellow (fat yellow): the veins turn green and yellow, but the surrounding area is still green. There is also a sudden loss of green and dry yellow leaves after fertilization, which are caused by hypertrophy and enrichment of fertilizer.
Solution: so far, there are only two ways to deal with fertilizer yellow: root irrigation with large amount of water and root washing in the basin.
6. The lack of fertilizer on mast flower results in the yellow of leaves (yellow of fertilizer): the lack of fertilizer will also cause the yellow of plants, such as iron deficiency. The leaves are light yellow or white, and the veins of leaves are still green. At this time, 0.2% - 0.5% ferrous sulfate should be sprayed for prevention and control; in case of magnesium deficiency, the old leaves first turn yellow, then the new leaves turn yellow, and the veins of leaves are still green. At this time, 0.7% - 0.8% boron magnesium fertilizer can be sprayed for prevention and control. 7. Due to improper illumination, the leaves of mast flower turn yellow: due to excessive illumination, yellow spots appear in the sunrise part of the leaves. At this time, it can be recovered only by moving it to the shade for maintenance, and the newly grown leaves will not have yellow spots again. When the sun is not enough, the leaves will turn yellow or even fall off. Solution: just put it under the sun to replenish the sunshine.
Water culture of Gardenia jasminoides Ellis the cutting of Gardenia jasminoides Ellis: the cut branches of Gardenia jasminoides Ellis can be directly put into a vessel, because the temperature after Gardenia has become very suitable for plant growth, after a few weeks of water culture, they can take root, before taking root, they need to change water frequently, so that they can supply oxygen better and promote the survival of rooting. At that time, the pruning branches did not take photos, this is About 3 or 4 weeks after hydroponics last year
Water culture method of Gardenia
1. Change water: I don't have a fixed time to change water in the maintenance process. When I think about it, I change it once. I remember that last year, I changed water because the water smelled. Because of the fertilizer in the water, sometimes the moss grows very fast, and the roots are covered. At this time, I will try my best to wash the moss off the roots with tap water. At the same time, I will clean the cultivation equipment. After changing the water, sometimes I will add fertilizer, sometimes I will clean it Water.
Attachment: Hua you once told me that shading can inhibit the growth of moss, so you can see that there is a box outside my vase that blocks the growth of moss to some extent, but it can't be completely removed. Some Hua you also told me that I can raise some small fish, because the vase is small, I haven't tried it yet, and interested flower friends can try it.
2. Fertilization: hydroponic Chlorophytum, Phyllostachys pubescens and other plants can be fully used with clear water, which I have tested, but for gardenia, without fertilizer, I think it can't produce beautiful flowers,
There are three kinds of fertilizers: first, granular compound fertilizer, which is the most common granular fertilizer on the market; second, compound liquid fertilizer; third, if it is necessary to be green, it is necessary to bloom, and there are solid fertilizers such as potassium dihydrogen phosphate. Use concentration: for a vase like me, add about 3-5 grains at a time, calculate the proportion of liquid fertilizer and solid fertilizer, and the concentration is estimated to be below 1:1000. I always like using fertilizer Thin and fat. In the process of Gardenia maintenance, sometimes yellow disease will occur due to iron deficiency. This bottle of Gardenia also used ferrous iron once after entering the room last year. It is still that principle, and it should be very thin, otherwise the flowers will not be able to bear it. Experience in maintenance of mast flower: 1. Turn over the soil frequently, ventilate, change basin every two years
2. In the early stage of Gardenia bud emergence, it is necessary to give the flower two times of insecticidal drugs and two times of sterilization drugs in time, so as to play a preventive effect, so that the flower will not be damaged by insects in the future.
3. Gardenia should be pruned frequently. After it is opened, it should be pruned. Then it will hold new buds beside it. When it is budding, it will follow the principle of removing the weak and retaining the strong, survive the fittest, keep the pot soil nutrients, and supply those valuable bone flowers, worthless bone flowers, shriveled bone flowers, and weak branches. Please don't be soft, or Gardenia will not grow well, gardenia's Germination ability is very strong, small hand is not cruel, flower is not stable.
4, in summer, sprinkle under the foliage spray and sprinkle under the water, keeping moisture. Gardenia likes water.
5. The soil is generally humus soil plus sand soil plus loess. Let's talk about it. If we raise gardenias according to the method I said, we should be able to raise gardenias. Good luck.