Central Frost Area
The editor will talk about the planting content of non-dormant areas in the south and whether to apply water-soluble fertilizers to the roses that are about to enter winter. The specific contents are as follows:
Recently, many flower friends have been asking whether to top-dress the roses with many tender branches as winter approaches. What kind of fertilizer should be used? Regarding the issue of fertilizing after entering winter, this needs to be treated differently depending on the region.
One, Non-Dormant Area in the South
If it is in the southern region where roses do not dormant in winter and continue to grow, for shrub roses, it is recommended to fertilize according to the normal growth cycle. For example, use a general growth fertilizer during the stage of long branches, and switch to potassium dihydrogen phosphate fertilizer after flower buds appear to promote the growth of flower buds.
If it is a climbing rose, it is necessary to increase the use of phosphorus and potassium fertilizers in December, and even stop using nitrogen fertilizers completely. The reason for using a large amount of phosphorus and potassium fertilizers for climbing roses is not to promote flowering but to promote the maturation of the branches as soon as possible.
Because the new shoots of climbing roses in autumn are not mature enough, and it is also difficult for them to grow flowering branches in spring after being pulled in winter. Therefore, using phosphorus and potassium fertilizers in advance can promote the maturation of the autumn shoots and also promote root growth, laying the foundation for a large number of flowers in spring.
Two, Central Frost Area
For the central region where the temperature can reach below zero in winter, there are two plans for fertilizing roses now.
1. Roses without Tender Branches
For rose plants that are flowering or have finished flowering and currently have no new buds growing, it is possible to stop using water-soluble fertilizers. Because the temperature will soon drop again, roses will enter a slow-growth period or even a dormant state. It is completely possible to stop fertilizing.
2. Roses with a Large Number of Tender Branches
What if there are still a large number of tender branches growing on the roses, or there are still many flower buds growing? In this case, it is necessary to continue top-dressing with water-soluble fertilizers. If there are many flower buds growing on the roses, not only should the water-soluble potassium dihydrogen phosphate fertilizers be continuously applied, but also the branches of the roses should be simply covered and protected from frost when the night temperature is below 4 degrees. If it is a potted plant, it is best to place it in a south-facing corridor where it cannot be rained on or frosted, or on a south balcony.
If the roses currently only have many new branches growing and no flower buds or very small flower buds, then there is basically no chance to bloom. At this time, you have two choices.
One is to continue top-dressing with potassium dihydrogen phosphate fertilizer to promote branch maturation, root growth, and prevent frost damage to the branches due to cooling. The other is to completely stop using water-soluble fertilizers because roses will be heavily pruned in winter, and even if the tender branches are frozen, it will not matter much, just cut them off.
However, to promote the growth of rose roots and prepare for the爆发 of flowers in the spring of the following year, it is recommended that you continue to apply potassium dihydrogen phosphate fertilizers twice more until the temperature consistently stays below 5 degrees before stopping.
The above is [] the specific content about the non-dormant area in the south and the central frost area. If it can be helpful to you, remember to visit the website often!