Why are the leaves on my roses turning yellow
Roses are a type of flower that many people love, with different colors representing different meanings. Red roses represent love, purple roses represent romance, pink roses represent first love, and so on. The roses bought on the market are not only expensive, but they cannot survive long in water. Some flower lovers choose to plant their own potted roses, which not only serve as decoration, but also bring joy to the mood with the fragrance of the roses. It is common for potted roses to turn yellow during maintenance. What should be done? Don’t worry, after reading this article, you will know how to do it.
The reason for the yellowing of rose leaves
Insufficient or excessive lighting
Photosynthesis can only be carried out with light, and the leaves can remain emerald green. If there is not enough light, the leaves will become light colored, yellow, or even shed. Of course, it is easy to get too much sunlight in summer, and the leaves after sunburn will also turn yellow, wither, and have spots.
Watering too little or too much
The growth of roses cannot be separated from water. Watering too little can cause drought and water shortage, leading to yellowing of leaves. Watering too much can easily cause excessive water accumulation in the pot soil, affecting the roots of the roses and even rotting. As a result, the entire rose will lose nutrients, and the leaves will naturally turn yellow, even causing the entire plant to die.
Temperature too high or too low
Although roses prefer a warm environment, in summer when the temperature is particularly high, if you do not provide appropriate shade, the leaves will curl and turn yellow. If kept outdoors in the cold winter, the leaves of the dormant roses will turn yellow and fall off.
Improper trimming
Pruning roses is for their appearance and better growth, but many people overlook this and allow them to freely grow. If the flower branches are too dense, they will compete for nutrients, and if the nutrients are not met, the leaves will turn yellow.
Excessive or insufficient fertilization
Improper fertilization of roses can also cause the leaves to wither and turn yellow. If fertilized too much or too frequently, it can cause the old leaves to wither, turn yellow, and fall off; If there is too little fertilization, especially during the vigorous growth period, the nutrients cannot keep up, and the newly grown leaves will appear light and yellow in color, and will slowly fall off.
Improper prevention and control of pests and diseases
When roses are attacked by pests and diseases, they may also have yellow and spotted leaves, such as common leaf spot diseases and red spider mites.
A solution to the yellowing of rose leaves
Solution to yellowing of leaves caused by improper lighting
If there is too much light, it should be placed in a cool place at the right time, cut off the yellowed leaves, and water appropriately; If there is too little light, move outdoors in a timely manner to ensure sufficient sunlight every day, so that the leaves will slowly turn green.
Solution to yellowing of leaves caused by improper watering
First, it is necessary to determine whether excessive or insufficient watering is causing yellowing of the leaves. Overwatering can be quite complex, and it is necessary to check whether the roots in the soil have decayed. If so, cut off the decayed part, treat the wound, and then plant it in another soil. If the watering is too little, you can increase the amount of watering in the later stage in moderation, watering slowly and not too much at once.
Solution to leaf yellowing caused by temperature discomfort
Yellowing caused by excessive temperature should be promptly cooled down, and water should be sprayed around the blades to increase air humidity; If the leaves turn yellow due to low temperature, they should be moved indoors and the indoor temperature should not be lower than 8 ℃.
Solution to yellowing of leaves caused by improper pruning
During the growth period of roses every year, spring is generally chosen, and diseased branches, dead branches, weak branches, etc. are pruned to avoid excessive density of branches and leaves in the later stage to compete for the nutrients of the entire plant.
Solution to yellowing of leaves caused by improper fertilization
Apply too little fertilizer, replenish the amount of fertilizer in a timely manner, but do not apply too much fertilizer at once; If there is excessive fertilization, it is necessary to water and dilute the fertilizer in a timely manner. If it does not work, it is best to transplant it.
Solution to yellowing of leaves caused by pests and diseases
Firstly, it is necessary to determine which disease is causing it in order to prescribe the right medicine. Secondly, it should be placed in a well ventilated and dry environment to prevent the occurrence of diseases and pests. Finally, it is important to use medication reasonably and pay attention to leaf cleanliness.
Summary: Regardless of the reason for the yellowing of rose leaves, it is necessary to deal with it in a timely manner to avoid affecting the growth of the entire plant. If it is not caused by the above six major reasons, it may also be a natural growth phenomenon of aging.
Original article author：Fragrant Road Full，If reprinted, please indicate the source.：https://www.theroadfull.com/article/3601.html
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