What are the reasons for the withering of new rose buds?
The editor will share with everyone the experience of green plant maintenance regarding the reasons for the withering of new rose buds. Let's learn about it together below.
What are the reasons for the withering of new rose buds?
In the past few days, several flower enthusiasts have asked about the issue of withering new rose buds. This phenomenon is indeed more common in the autumn and winter seasons. So, what are the causes? Many flower enthusiasts think it might be due to some kind of disease or pest. However, the main reason for this phenomenon is more related to our management.
Reasons for the withering of new rose buds in autumn and winter
As shown in the picture above, in the autumn and winter seasons, new rose buds that have just emerged turn black and wither. The main reasons are as follows:
1. Fertilizer damage
At this time, most of the rose plants in various regions have not yet shed their leaves, meaning they have not officially entered the dormant stage. However, because the temperature is relatively low, the growth rate of roses has slowed down.
If we continue to apply fast-acting water-soluble fertilizers to roses as before, due to the slow growth rate, the roses often cannot metabolize that much fertilizer, leading to a burning of the buds.
What are the reasons for the withering of new rose buds?
Especially in cases where the previous management was poor and the roses have few old leaves, the newly emerged buds are relatively fragile. If normal concentration water-soluble fertilizers are applied, it is easy to cause fertilizer damage.
Currently, the minimum temperature in most regions is below 10 degrees Celsius, and roses grow slowly, about to enter the dormant stage. It is actually appropriate to stop using water-soluble fertilizers at this time. If water-soluble fertilizers must be used, it is recommended to use fertilizers with higher phosphorus and potassium content, which can enhance the roses' resistance. However, it is also important to pay attention to the dilution concentration and use a weaker solution.
In fact, in the late autumn and early winter, Green Plant Enthusiast Network personally recommends using fermented organic fertilizers. Organic fertilizers not only provide roses with the nutrients needed for growth but also help keep the soil warm, which is a good long-term fertilizer for roses.
2. Frost damage