What to pay attention to when repotting Chinese roses
Today's small experience sharing: what knowledge about the flowers should be paid attention to when repotting Chinese roses, the editor of this site will introduce to everyone next.
Chinese roses in pots have grown for a year, and the roots have expanded to the pot wall. The pot soil has been absorbed by the plant for a year, and the mineral elements are already deficient. Therefore, only by repotting can the old plant be rejuvenated and the new branches remain vigorous. If it is not moved for several years, the root system will be limited, and the branches and leaves will gradually become old, losing their ornamental value, and some may even die (if this situation occurs, it should be transplanted to the ground for rejuvenation immediately).
The time for repotting Chinese roses should be before "Jingzhe" (the day when insects begin to stir). The method of repotting is to first tilt the pot to the side, gently tap the edge of the pot to separate the potting soil from the pot wall, remove the soil ball, tap off the soil, cut off the old, weak, and diseased roots, leaving 3 to 4 strong roots about 6-10 centimeters long, and it is necessary to remove the sprouts from the rootstock when grafting. The roots of Chinese roses often have tumors like walnut meat, which only consume nutrients and affect the growth of the plant, so they must be cut and stripped clean.
During repotting, the branches should also be pruned, retaining 2 to 3 branches growing in different directions, each about 10-13 centimeters long. It is best to use a clay pot for the pot, and if the old clay pot is still used, it should be washed and dried before use. The drainage hole at the bottom of the pot is first covered with two pieces of broken tiles (or broken pot pieces), surrounded by several small stones for ventilation, and then the prepared potting soil is added, bringing it to a thickness of 3 centimeters before planting the seedlings. Continue adding soil and spreading the roots, while adding soil and gently shaking the pot, and gently pressing the soil around the roots with your fingers until the soil is 1.5 centimeters away from the pot edge and the roots are 1.5 centimeters into the soil. After planting, water thoroughly with a fine-mist sprayer until water flows out of the bottom of the pot. Then place the pot in a sunny and sheltered outdoor area. Once the potting soil is slightly dry, you can apply fertilizer, using a dilute liquid fertilizer with nitrogen as the main ingredient, once a week. With careful care, beautiful flowers will bloom in the first or second decade of May.
The potting soil used for repotting must be selected from garden soil, mixed with rice husk ash to make it loose, with a ratio of soil to rice husk ash of 3:2 or 1:1. The soil should first be dried and crushed, with large particles like soybeans and small ones like rice grains (wet soil should not be rubbed with hands, as this will cause the soil clumps to harden and not breathe), then mixed with rice husk ash. You can also use a mixture of 4 parts of decomposed leaf soil, 1 part of rice husk ash, and 5 parts of garden soil (mature soil).
When repotting, you can add some decomposed dry fertilizer as a base fertilizer, but it must be in a ratio of 4:1 or 3:1. To avoid direct contact between the fertilizer soil and the plant's roots, it is usually necessary to first surround the roots with unfertilized potting soil and then place the fertilizer soil around the outside.
Do you know the detailed introduction of the sharing above about what to pay attention to when repotting Chinese roses?