What's going on with the yellowing leaves and dried branches on my potted rose bush, and why are the new buds turning black?
The editor introduces you to the related green plant content of why the leaves of the potted rose turn yellow, the branches dry up, the new buds turn black, which will definitely bring you help. Let's learn about it together!
Why do potted roses have yellow leaves, dried branches, yellow stems, and black new buds? The root cause is here!
Recently, the weather has become cooler, and our gardening friends have also started thinking about taking care of their potted roses. With increasing attention to potted roses, many issues have gradually emerged. In the past few days, the 'Ask Circle' has become lively, with a noticeable increase in the number of questions posted by gardeners compared to the summer.
From the photo, it is clearly visible that there are yellow leaves, dried branches, and black buds. Looking at the condition of this rose bush, let's imagine what it has gone through.
According to the gardening friend, the temperature was over 40 degrees a few days ago, and he doesn't know if it was caused by the high temperature. Below, please follow me to see the essence of the problem through the phenomenon.
1. Yellow Leaves
In the photo, the new leaves of this rose appear light green, with some new leaves showing chlorosis, which is a typical symptom of nutrient deficiency. The reason for the nutrient deficiency in roses can be caused by root damage or may be due to poor absorption by the roots during high temperatures.
Looking at the old leaves, the leaf tips and edges are clearly dried and yellowed, with some leaves completely drying out, which is a typical symptom of fertilizer damage or acute drought.
Why do potted roses have yellow leaves, dried branches, yellow stems, and black new buds?
From these two types of yellow leaves, combined with the gardening friend's mention of high temperatures, we can draw two inferences. ①, it is possible that during the high-temperature period, additional fertilization caused root damage to this rose bush. ②, due to delayed watering during the hot weather, excessive drought caused root damage, and after watering, root rot occurred, leading to poor absorption and extensive chlorosis in the new leaves.
2. Dried Branches and Black Buds
Some branches of the plant have turned yellow and withered, which is a sign of nutrient deficiency, and the root cause is still root damage. The blackening of the branch tips and the withering of the new leaves could be caused by fertilizer damage leading to bud burning or could be a consequence of severe root damage.
So, a seedling may show different symptoms, but the root cause of this problem might be the same, which is root damage. So, what should we do now?
For such a potted rose with root rot, especially in the summer, changing the pot and soil is actually a high-risk operation that could directly lead to the black rot of the rose.