Why should we clear the rose garden in winter and when is the right time to do so?

Why should we clean the rose garden in winter

Let me share with you the knowledge of why we should clean the rose garden in winter. Next, the editor will introduce it to everyone.

With the temperature dropping, many flower friends ask: "Should roses be moved indoors? Will they freeze?" In fact, roses are very cold-resistant and can withstand low temperatures of -15 to -20 degrees Celsius. Most parts of the country can overwinter outdoors, so there's no need to worry about roses freezing. However, after this round of cooling, our rose garden cleaning should be put on the agenda.

One, Why should we clean the rose garden in winter

Many flower friends say that they often hear others say that roses need to be cleaned in winter, but what exactly is cleaning the garden? What is the function of cleaning the garden?

As the name implies, cleaning the garden means cleaning our rose garden, including removing yellow leaves, fallen leaves, weeds, and withered branches. Cleaning the garden should first start with the hygiene of our garden, as fallen leaves and withered grass can easily breed bacteria and hide pests. Cleaning the hygiene can greatly reduce the medium for the breeding of germs.

Of course, simply cleaning the hygiene is not enough, as many germ spores and eggs are invisible to the naked eye. This requires the use of drugs for cleaning. Therefore, when cleaning the garden, we will also use "calcium sulfate," which is a low-toxic, inexpensive, and effective strong alkali fungicide and insecticide. It is effective against various germs and pests and their eggs, and its efficacy lasts a long time, so we generally use "calcium sulfate" for garden cleaning in winter.

Two, The time for cleaning the rose garden

Since the efficacy of calcium sulfate is closely related to temperature, using it at high temperatures can easily burn the leaves, and using it at low temperatures can reduce its activity and effectiveness. Therefore, the general cleaning time is chosen when the temperature is around 20 degrees Celsius during the day and 10 degrees Celsius at night.

Areas in the north can start cleaning now, while regions in Jiangsu, Zhejiang, and Shanghai can do so from mid-November to early December. In the south, where winter is warm, cleaning can be done from mid-December to January.

From the beginning of winter to early spring before sprouting, using calcium sulfate to clean the garden 2-3 times can greatly help reduce the occurrence of rose diseases and pests the following year.

Three, How to clean the rose garden?

In outdoor gardens, when cleaning the roses, first remove all the dead leaves, weeds, etc., and then spray the entire area with calcium sulfate. Since the activity of calcium sulfate is significantly affected by temperature, if the temperature in your area is relatively high and expected to remain so, the concentration of the calcium sulfate solution should be more diluted, for example, if it's recommended to dilute 200 times, you can dilute it 300-400 times when the temperature is higher. If the temperature is low, you can increase the concentration and dilute it 50-100 times.

When spraying calcium sulfate, the following points should be noted.

1. Choose consecutive sunny days

The efficacy of calcium sulfate can last up to a month. To ensure the effectiveness of the cleaning, it should be sprayed on consecutive sunny days. If it rains within 10 days after spraying, it is recommended to respray after the weather clears.

2. Personal protection

Calcium sulfate has a strong odor that will gradually disperse after half an hour of spraying. Therefore, when spraying, you should wear a mask, a hat, and preferably a disposable raincoat to prevent the solution from getting on your clothes, as the smell of calcium sulfate is really strong. (For outdoor use, not recommended for indoor use)

3. Avoid spraying on herbaceous plants

Calcium sulfate is a strong alkali low-toxic pesticide. When using it, do not mix it with other drugs or fertilizers. It should also be avoided when spraying on herbaceous plants and vegetables, as the leaves of herbaceous plants are relatively tender and thin and can be easily burned. Calcium sulfate is generally used only on woody plants, such as deciduous shrubs, fruit trees, and绿化 trees, which usually do not burn leaves. Vegetables should not be sprayed, as the residue time is relatively long and can affect consumption, and it is also easy to burn leaves.

4. Spray thoroughly, do not pour at the roots

Many flower friends like to pour pesticides at the roots of roses, thinking it can kill pests and bacteria. Pay attention, the calcium sulfate or sodium rosinate used for cleaning cannot be poured at the roots. Strong alkali pesticides can damage the soil pH and easily cause adverse consequences. We just need to carefully spray the leaves, branches, and soil surface of the roses evenly, and the effect will be achieved without pouring at the roots, and it should not be poured.

The above is the knowledge of why we should clean the rose garden in winter, the time for cleaning the rose garden, and how to do it. I hope this article can be of some help to you!