Causes and solutions of yellowing of rose leaves caused by excessive watering
The main reason for the yellowing of Chinese rose leaves may be the phenomenon of water yellowing caused by excessive watering. For some friends who like Chinese rose flowers, in order to make them grow better, they like to water them too often, and they are always worried that water shortage will affect the flowering of Chinese rose flowers. In fact, Chinese rose flowers have high requirements for water, especially afraid of floods, and it is even more impossible to let water accumulate in the basin. If you water too much, it is likely that the new leaves of Chinese rose will be dull and the old leaves will turn yellow and wither. Chinese rose likes plenty of light, and many flower lovers keep it outdoors for maintenance, but they often ignore the lack of drainage in rainy days, which leads to water accumulation in the basin. Long-term water accumulation in basin soil will lead to root rot. After root rot, plants can't absorb enough water and nutrients, and leaves will turn yellow.
solution
If the leaves of Chinese rose turn yellow due to excessive watering, we need to stop watering immediately, then put the plants in a ventilated and cool place for maintenance, and stop fertilization at the same time, because excessive watering may have caused damage to the root system of Chinese rose. At this time, fertilization is easy to infect the roots. If it is caused by water in the basin, we'd better take the plants out of the basin and replant them. It should be noted that it is necessary to check whether the root system of the rose is rotten after the pot is removed. If the roots rot, we need to cut off the rotten roots in time, then soak them in carbendazim for disinfection, and then replant the potted plants. In addition, if it rains continuously, we'd better move the plants indoors for maintenance.
Too little watering causes the leaves of Chinese rose to turn yellow.
Rose needs water to grow leaves and bloom during its growth. If you don't water for a long time during the maintenance period, it is likely to lead to yellow leaves of rose due to lack of water. If the water shortage time is too long, the top or edge of the rose leaves will turn yellow and dry slowly, and in severe cases, the leaves may fall off.
solution
If it is because of too little watering that the Chinese rose turns yellow, first of all, we need to water it immediately. It should be noted that watering should be combined with loosening the soil at the same time, because after long-term water shortage, the soil is easy to harden, and it is difficult for the root system to absorb water when watering. In addition, it should be noted that it is necessary to avoid sun exposure after watering, and it is best to place the plants in a cool and ventilated place where there is scattered light for maintenance.
Excessive fertilization causes the leaves of Chinese rose to turn yellow.
After watering, let's talk about fertilization. If the yellow leaves of Chinese rose appear soon after fertilization, it is necessary to consider whether the leaves turn yellow because of over fertilization. Because too much fertilizer can't be absorbed by plants, the fertilizer will stay in the soil, leading to the phenomenon of burning the roots of Chinese rose. The symptoms of fertilizer damage are mainly manifested in the tender branches and leaves at the top of Chinese rose. The tender branches and leaves are yellow and curly, which may be caused by excessive fertilization.
solution
During the maintenance of Chinese rose flowers, if the leaves of Chinese rose flowers turn yellow because of excessive fertilization, we need to stop fertilization first, then water the plants with clear water, dilute the amount of fertilizer in the soil, and do a good job of drainage. If the fertilizer damage is particularly serious, we'd better replace the pot soil.
Yellowing phenomenon of rose leaves caused by lack of fertilizer
During the maintenance of Chinese rose, excessive fertilization will cause fertilizer damage, but if it is not fertilized for a long time, Chinese rose will be undernourished, and new leaves and buds will turn yellow and lose green.
solution
If it is because of water shortage, it will be easier to solve the problem of yellowing leaves in the monthly plan. First of all, we need to topdressing some compound fertilizer, and then water it properly after fertilization. It should be noted that fertilization must be based on the principle of thin fertilizer and diligent application to avoid fertilizer damage caused by excessive fertilization. Generally speaking, after the Chinese rose enters the vigorous growth period, we need to chase some fertilizers with balanced nitrogen, phosphorus and potassium to promote the growth of new roots.