How to grow fragrant Chinese roses well
As the fragrant queen among courtyard flowers, fragrant Chinese roses are deeply favored by horticulture enthusiasts for their rich aroma and elegant flower shapes. To ensure that this Rosaceae plant blooms charmingly throughout the year, it is necessary to master its growth habits and scientific management methods. This article will systematically analyze the fine maintenance points of fragrant Chinese roses from environmental regulation to disease prevention and treatment.
Ⅰ. Precise control of environmental factors
Temperature and lighting management
The optimal growth temperature for fragrant Chinese roses is between 15-25°C. In summer, shading nets should be used to cool down, and in winter, they need to be moved into a room with a temperature above 5°C in the north. Ensure 6 hours of direct sunlight in spring and autumn, and use a shading net with a 30% light transmission rate from 11-15 in summer, while in winter, full sunlight can be accepted.
Watering strategy (G-Y)
Keep the soil moist during the sprouting period in spring, water once in the morning and once in the evening in summer (for potted plants), and water 2-3 times a week for ground planting. The immersion pot method can prevent leaf diseases, and in winter, control the water to keep the soil slightly dry. It is recommended to install a soil moisture meter to maintain a moisture content of 40-60%.
Ⅱ. Nutrition and shape management
Scientific fertilization system
How to grow fragrant Chinese roses well
Apply high-nitrogen fertilizer (N-P-K=20-10-10) during the sprouting period in March, switch to a flowering plant fertilizer (15-30-15) in April, and supplement with slow-release fertilizer after flowering. Spraying 0.2% potassium dihydrogen phosphate solution on the leaves every 10 days can significantly improve the fullness of the flowers.
Pruning and shaping art
Conduct shaping pruning in December, retaining 3-5 main branches with 3 full buds on each. Remove the spent flowers immediately after flowering, cutting them back to the second set of five small leaves, and use a 45-degree angle cut to promote the growth of new branches. Clematis needs to be regularly tied up to guide the growth direction.
Ⅲ. Propagation and disease control
Tips for cutting propagation
Select semi-woody branches, retain 2-3 buds, use vermiculite and perlite (1:1) as the substrate, maintain 85% humidity, and use rooting powder treatment. Spring cuttings can take root in 45 days. It is recommended to use an automatic misting device to maintain a constant humidity environment.