Do I need to fertilize the roses when it gets cooler?
The editor answers related questions about planting flowers for netizens, whether to fertilize roses when it gets cooler. Let's learn about it together below.
With the arrival of cold air, many areas have entered a quick-freeze mode. After this cooling, our outdoor roses will definitely have a lot of yellow leaves and falling leaves, starting to enter dormancy. So, what do we need to do at this time? Do we need to continue fertilizing the roses? Do we need to keep them warm and prevent cold? Can we prune them now? Today, let's answer these questions uniformly, hoping to be helpful to you.
1. Do I need to fertilize roses in winter? What kind of fertilizer should I use?
The issue of fertilizing roses in winter mainly depends on the region and the condition of the roses. For example, in Guangdong and Guangxi, roses do not have a dormancy period, and they should also be fertilized normally in winter. In areas with frost, roses will dormancy or grow very slowly when it's cold in winter, so water-soluble fertilizers can be stopped.
After this cooling, outdoor roses in frost areas will basically enter dormancy, and even those not fully dormant will grow very slowly. Therefore, water-soluble fertilizers can be completely stopped, and the application of winter fertilizers should begin.
For roses planted in the ground, whether shrub roses or climbing roses, it's time to start top-dressing with winter fertilizers. It is recommended to use fermented organic fertilizer + bone meal together. Organic fertilizer has comprehensive nutrients and is friendly to the soil, while bone meal is a natural phosphorus and potassium fertilizer that can promote more blooming of roses. The combination of organic fertilizer and bone meal for roses is very effective.
At this time, many flower friends will also apply raw fertilizers to roses. For areas where the temperature is below 5 degrees, it is also possible to apply raw fertilizers to ground roses, such as unfermented chicken manure, sheep manure, and fish intestines, which are all good for the spring growth of roses, especially fish intestines can make roses bloom more.
However, raw fertilizers have a significant risk of attracting borers, such as larvae of beetles and longicorn beetles. These borers are good at hiding and are not easy to detect, but their impact on the growth of roses is often fatal. Therefore, when applying raw fertilizers to roses, it is necessary to apply insecticides at the same time, and insecticides should be applied again when summer comes to prevent borers.
If it is a potted rose and you plan to repot it, there is no need to fertilize now; just water when the soil is dry, and add enough base fertilizer when repotting. For many rose growers, the workload of repotting is large, and it is actually possible to start repotting some roses now.
If there is no plan to repot the roses, you can dig out some of the surface potting soil now, mix the fermented organic fertilizer, bone meal, and a little potting soil, and then add it back, which can also supplement the soil fertility and make the roses grow vigorously in spring.
2. Do I need to take measures to prevent cold for roses when it gets cooler?
Many flower friends worry that the roses will be frozen when it gets cooler and ask whether they need to keep them warm or move them indoors. Actually, roses are very cold-resistant. Except for the cold northern regions, there is no need to worry about frost damage in other areas.
For roses that are still growing flower buds and want to open the buds, it is recommended to keep them in a warm room or under a corridor where there is no frost. After the temperature rises, the flower buds will generally continue to grow and open slowly.
3. The temperature has already dropped to zero. Can I prune the roses heavily now?
The temperature drop this time is quite significant, and many areas have reached zero. Flower friends think that it's time to prune the roses in winter. It is recommended to wait a bit longer to avoid new buds sprouting after the temperature rises. It is suggested to prune around mid-to-late January.
If you want to repot now, you can do it. After repotting, there is no need to prune the roses heavily, as the roses are already growing slowly, and it doesn't matter much if you don't prune after repotting. To分散 some of the workload, you can repot first and then prune heavily in January.
The detailed content about whether to fertilize roses when it gets cooler is mentioned above, hoping it can help you!