Many Considerations for Fertilizing Roses in Summer
Today, the editor will explain the knowledge of green plants and flowers about the many considerations for fertilizing roses in summer. Let's follow the editor and take a look!
Recently, many flower friends have asked whether they can still fertilize roses in summer. Many people say that high temperatures in summer can easily cause black stems and wilting in roses. Is this true?
Do roses need to be fertilized in summer?
Among the many potted flowers, roses are the most special, because roses can bloom in all four seasons. With proper care, they can maintain a batch of flowers every 35-40 days, which can be said to be a batch of flowers every month.
Since roses can continue to grow and bloom in summer, it is natural to fertilize them. Moreover, roses require more fertilizer and water in summer. Why is that?
In summer, the frequency of watering is very high. Many flower friends water once a day, or even twice a day, in the morning and evening.
Think about it, when our potted plants suffer fertilizer damage, what is the most commonly used rescue method? Isn't it drenching with a large amount of water? The principle is that the water flow carries away the fertilizer in the soil, diluting the fertilizer solution.
So, when we water roses every day in summer, doesn't each watering take away some of the nutrients in the soil? In such high-frequency watering, roses still maintain growth and flowering. Can we not apply additional fertilizer? Definitely not.
So, how should we fertilize roses in summer?
Fertilizing roses in summer can indeed easily cause black stems and wilting. Therefore, when fertilizing rose potted plants in summer, we need to do the following three points.
1. Observe whether the rose is growing
After entering summer and with the hot weather, some heat-intolerant varieties will enter a semi-dormant state, where there will be growth stagnation, no new buds, or very slow germination of new buds, similar to a僵苗. In this case, it is recommended not to use fast-acting fertilizers.
Since growth is basically stagnant and nutrient consumption is low, you can use a small amount of well-fermented organic sheep manure or chicken manure, buried shallowly around the pot, to supplement the nutrients lost due to watering. Fermented organic fertilizers have a relatively gentle effect and are less likely to burn seedlings, and the fertilizer effect lasts a long time.
However, if our roses are still in the growing stage, producing new buds, or the new buds are continuously growing, or even forming flower buds, in this case, we need to pay attention to strengthening the application of fertilizer and water.
When choosing fertilizers, a combination of long-acting and fast-acting fertilizers should be used. You can shallowly bury fermented sheep manure, chicken manure, or controlled-release fertilizers around the pot. Note that controlled-release fertilizers are used here, not slow-release fertilizers. As to why slow-release fertilizers are not used, you can refer to the "How to Grow Roses from Scratch" chapter in the book written by the editor.
In addition to applying long-acting fertilizers to replenish soil nutrients, quick-acting water-soluble fertilizers should also be applied.
2. Persist in applying thin fertilizers frequently and avoid applying thick fertilizers
When using fast-acting fertilizers, the principle of applying thin fertilizers frequently must be followed, and the dilution concentration of the fertilizer should be increased, such as using a 1000-fold concentration of Huaduo No. 1 in spring, and in summer, it should be used at a concentration of 1500-2000-fold.
Increasing the dilution ratio is to avoid fertilizer damage caused by high temperatures and to prevent fertilizer damage when the fine roots of roses are damaged and their absorption capacity decreases. By increasing the dilution ratio, the frequency of top-dressing can be appropriately increased, for example, watering once every 7 days in spring, and now it can be changed to every 3-5 days. The reason for such adjustments is mainly related to our watering frequency, and the relationship is very close. If we water twice a day in summer, it is fine to apply Huaduo fertilizer once a day, once with fertilizer and once with clear water, maintaining thin and frequent applications.
3. The timing of fertilization should be appropriate
Although thin fertilizers are applied frequently, the timing of fertilization is also very important. It is recommended that the best time for watering in summer is in the evening. Evening watering can timely replenish the missing water in the soil, and after a night of absorption and drainage, the pot soil will not be too moist the next day, and it will not easily form a high-temperature and high-humidity environment, causing damage to the fine roots.
Therefore, fertilization is the same. It is best to apply fertilizers and pesticides in the evening in summer when the temperature is relatively low, which is conducive to plant absorption and does not easily cause fertilizer or pesticide damage.
If you are used to watering in the morning, it is recommended that you adjust it, fertilize in the evening, and water with clear water in the morning.
Many flower friends experience black stems and yellow leaves in roses as soon as they apply fertilizer in the summer because they have not paid attention to the details and followed the same approach as in spring, which naturally does not work. The management of rose potted plants in summer is not difficult, the key is in the details. Details determine success or failure, and when the details are done well, your roses will grow at three times the speed of others in the summer.
The above is a detailed explanation of the many considerations for fertilizing roses in summer and ignoring details, for your reference and suggestions!