What to do if the rose is sunburned?
The web introduces some small gardening knowledge about what to do if the rose is sunburned, let's understand together.
The rose bud has not opened yet, but the outer petals have dried up. Have you encountered this problem? I believe there are many gardening friends who have encountered this problem recently. Some students in the training camp have encountered it, and many gardening friends have consulted in private messages. Why does this phenomenon occur?
After working hard to raise the rose with full buds, it was fine when I left home in the morning, but when I came back from work in the afternoon, I found that all the buds had wilted.
Even the semi-opened categories have soft petals, with the outer petals drying and withering. Why is that? Actually, all these problems are caused by exposure to strong sunlight.
You may be confused. Isn't the rose supposed to be exposed to the sun? Why can't it be exposed to the sun now?
Can roses be exposed to the sun?
Roses are flowers that love sunshine, so it is certainly okay to be exposed to the sun, and they are not afraid of strong sunlight. Sufficient sunlight can make the rose grow short and strong, and it will have better resistance and is less likely to get sick or be affected by pests.
What to do if the rose is sunburned?
If there is not enough sunlight, the plant often grows too long, and the branches will become very long. However, if it is a cut flower variety, you can reduce sunlight exposure appropriately to make the branches taller, which is better for cutting and putting in a vase.
Since roses like sunlight so much, why do they still get sunburned?
How to prevent roses from getting sunburned?
Under normal conditions, roses do not get sunburned easily, and it is not summer. The reason why many people were affected in the past few days is that the weather this year is quite unusual. The temperature, which was originally around 20 degrees, suddenly rose to 35-38 degrees. This rapid temperature increase within a short time makes it normal for roses to have slow reactions.
It's like us who sit in the office for a long time without exposure to the sun and suddenly go outdoors to be exposed to the sun for a whole afternoon, which may cause sunburn, similar to facial peeling.
In addition to the discomfort caused by sudden temperature increases, there is another very important reason, which is lack of water.
You may be surprised. How can there be a lack of water when the potting soil is still moist?
Because the temperature suddenly rises, the transpiration of roses speeds up, and the consumption of water by the flowers and leaves suddenly increases. The demand suddenly increases, but the absorption capacity of the rose roots cannot be enhanced significantly in a short time. Therefore, even if there is water in the pot, under conditions where the water is not particularly abundant, it is easy to have insufficient absorption, leading to slight dehydration, resulting in soft flowers and sunburned petals.