How to fertilize roses in autumn and winter?
Here are some small experiences on rose cultivation in autumn and winter for netizens. Next, the editor will introduce to the netizens.
How to fertilize roses in autumn and winter? Three different seedling conditions require different fertilization methods.
Recently, many flower enthusiasts are confused about how to fertilize roses because the temperature has suddenly dropped, and in some areas, the lowest temperature has dropped below 10 degrees. Under such temperature conditions, the growth rate of most flowers has slowed down, and roses are no exception. So how should we fertilize roses in this situation?
1. Roses in bloom or with buds developing
The difficulty of fertilizing in autumn and winter lies in the complex condition of the roses. Roses that have been well managed in summer can still maintain a good condition in autumn and winter. Now, most of them are either blooming or growing flower buds.
For such potted roses, fertilizing in autumn and winter can focus on phosphorus and potassium fertilizers, such as using "Flower More 2" once a week or monopotassium phosphate once a week, combined with fermented organic fertilizers once a month.
Why use fermented organic fertilizers? Because roses bloom on new branches, when we apply a large amount of phosphorus and potassium fertilizers, roses may lack nitrogen fertilizers, leading to less germination and short branches. Without new branches, there won't be new rose flowers.
Using fermented organic fertilizers provides relatively balanced nutrition and has a long-lasting effect, which can support the nutrients needed for the growth of new rose branches. Combined with topdressing liquid phosphorus and potassium fertilizers, it can promote the maturation of new rose branches for blooming and enhance the cold resistance of roses in winter.
2. Roses just starting to sprout
How to fertilize roses in autumn and winter?
If we did not manage the roses well in summer and they are still in a dormant state for a long time in autumn, then at this time, most of them should be in the sprouting stage or with new buds about 7 to 8 centimeters long. In this case, fertilizing can be quite challenging.
Because the temperature is low, using a large amount of fast-acting nitrogen fertilizer may slow down the growth of roses and easily cause fertilizer damage. However, not fertilizing will make the new branches grow even slower, which can be a dilemma.
If this is the case, Green Enthusiast Network suggests using a general-purpose water-soluble fertilizer, diluted to a higher ratio, applying it to the roots every 7 days and foliar spraying every 3 days. This combination of root application and foliar spraying can promote the rapid growth of new rose branches.
Once the new branches have flower buds, immediately switch to monopotassium phosphate fertilizer for root application and foliar spraying, and pay attention to weather changes. When the temperature drops below 4 degrees, outdoor potted roses should be moved to eaves or places where they won't be affected by frost at night. Flower buds that are hit by frost are prone to diseases and may have difficulty opening.