Rhododendron blossoms are very beautiful, and there are many people, but it is also recognized as the most difficult family flowering plant, so in the summer it is not easy to have problems? In fact, there are two seasons when azaleas are most likely to have problems, one is winter and the other is summer. If you still can't raise azaleas, in the summer Xiao Qi tells you that you must know the "4 joys and 4 fears", only if you do it well, you will be able to be full of flower buds in the autumn, and in the winter, you will be able to completely burst the pot, and the leaves will not appear black and rotten, and they will always remain green.
1, like the light is afraid of exposure
Rhododendron it belongs to the flowering plant, most of the flowering plants are light-loving, but the rhododendron although like light, but afraid of exposure, if the summer high temperature season put under the sun, the leaves will appear edge yellow, and even there will be scorched leaves, it is due to strong light caused. So in the family to raise cuckoos, in the summer to see the light before nine o'clock in the morning, or thrown under the tree, or put under the shade net, the shade net shading rate is about 50%, so that there will be no problem.
2, like thin fat afraid of thick fat
Rhododendron, like other plants, wants to grow normally and flower normally, fertilizer must be adequately supplied, but if the fertilizer concentration is slightly larger in the maintenance process, it will inevitably lead to root injuries and blackened leaves, so we must ensure that the concentration of fertilizer is reduced. Especially in the summer, if the fertilizer concentration is large, the root burning will occur frequently. So how should I fertilize in the summer and what fertilizer should I choose?
In the summer, if you raise rhododendron branches have grown four to six leaves, this time there is no need to use fertilizer to promote growth, we can use high phosphorus content at this time, other elements are not missing, such as flowers more than two, its branches will grow relatively slowly, wait until the autumn comes to supplement potassium dihydrogen phosphate, its buds can quickly emerge, in the summer only need to make its branches gradually harden and aging.
If your rhododendron has just grown in the summer, if you want it to grow branches quickly, you can choose a high nitrogen content, and when its branches grow to four to six leaves, we can switch to high phosphorus fertilizer, and fertilization is guaranteed to be twice a month.
3, like wet and afraid of bruising
Rhododendron likes large humidity, the so-called humidity is that the soil should be humid, the air should have humidity, but in the summer high temperature and sweltering heat, the humidity is easy to appear rotten leaves after the situation, in the unventilated environment, the soil moisture will also appear rotten root situation, so how to ensure it?
We want to ensure the ventilation of the environment, in the case of good ventilation, the potting soil dried down one or two centimeters in time to water it on the line, regularly to spray to ensure humidity, if the ventilation is not good, then we have to find an electric fan after watering, blowing on the surface of the soil, blowing the soil surface is slightly moist on it, this time does not need to humidify, because the environmental ventilation is relatively poor, it will have humidity on the surface of the soil upwards, it is not easy to have problems. If the ventilation is not good, the humidity will rot the leaves, if the ventilation is not good, the water will rot the roots if it is not dried for a long time.
4, acid and alkali
Rhododendron is a typical southern flower, it likes acidic soil, if the soil is alkaline, it will cause its new leaves to grow green veins, other places yellow, and finally the leaves of the entire plant will appear this yellow leaf situation, then you will be more difficult to treat. Therefore, in the summer, we must ensure that the soil is acidic, and it is recommended that every time you add one or two drops of vinegar when watering, you can play a role in improving water quality. If you are in the southern region, the water quality is acidic, then there is no need to add, and you have to water him with chelated iron every one or two months to ensure that the iron in the soil is sufficient and there will be no problem.
Now that it's summer, small cuckoos are generally full of buds in the fall and can bloom before winter. If you want your rhododendron to grow well, there is no problem in the summer, be sure to do a good job of 4 hi 4 fears, then the autumn will be full of buds, no yellow leaves, no leaves.