1, trim the residual flowers
Prune the residual flowers in time after the roses bloom, so as to prevent the plants from bearing seeds, reduce nutrient consumption and promote the germination of new branches of roses. When pruning, start pruning from the position five millimeters above the buds, pay attention to the five buds on the branches, and cut off the weak branches.
2. Dense branches
In the hot rainy season, the rose will enter the semi-dormancy period, and the new branches will be complex and delicate, which will easily lead to the decline of flowering quality. Therefore, it is necessary to prune the branches that are too dense and too long, so as to maintain the ventilated and light-transmitting plant type, and pay attention to pruning the buds that grow too densely in time.
Step 3 trim and reshape
Prune and shape roses after August every year. When pruning, prune overlapping branches, cross branches and over-dense branches to ensure beautiful and exquisite plant shape. Pay attention to leave two or three buds on each branch to ensure that the roses will bloom in the coming year.
Breeding method of Chinese rose
1, basin soil selection
The soil for raising Chinese rose flowers should be rich in nutrients, loose and breathable, and generally made of garden soil, Ji Kang ash, garbage soil, river sand and so on. The flowerpot should be a kind of pottery pot with strong air permeability and good drainage.
2. Fertilizer and water management
Adequate fertilizer supply can make Chinese rose flowers big, bright and fragrant. Water every 2~3 days during the growing period to avoid excessive water accumulation and wet roots.
3. Lighting temperature
Roses love light, so it is necessary to ensure that there are more than 6 hours of direct sunlight every day during the breeding process, and the light duration should be extended in winter. The optimum temperature for development is between18 and 22℃, and freezing injury may occur below 5℃.