How to Grow Chinese Rose (Rosa chinensis): Key Points for Planting Chinese Roses
The Chinese rose is known as the queen of flowers, and is also called Yueyuehong (monthly red). It is an evergreen low-growing shrub, and there are many varieties of Chinese rose, which bloom all year round, usually in red, pink or yellow, etc. Below, the editor briefly introduces how to grow Chinese roses and the key points for planting them.
I. How to Grow Chinese Rose
1. Soil Selection
The best soil for planting Chinese roses is fertile, moist soil. Avoid dryness and waterlogging by all means; be sure to choose loose soil, rich in organic matter, with good drainage and aeration, and which also retains water and protects soil fertility, namely sandy soil. It can be cultivated within a pH range of 5.6 to 7.2.
2. Temperature Requirements
Chinese roses grown in pots can overwinter safely when placed indoors. In summer, pay attention to lowering the temperature, because the most suitable temperature for Chinese roses is 18 to 20°C, so flowers blooming in April to May and September to October are large, with many petals, vivid colors and a strong fragrance.
3. Light Requirements
The Chinese rose is a sun-loving plant that likes sufficient sunlight; sunlight exposure each day must not be less than 5 to 6 hours, otherwise the branches and leaves will become weak, flowering will be poor, and the colors will not be vivid. It is usually suitable to place it in a spot with plenty of light. If it is placed on a high-rise concrete surface, pay attention to appropriate shading and sun protection at noon in summer.
4. Watering Method
When watering, it is best to keep it appropriately dry and moist. In March, when new leaves are growing, water once every 2 days, in the morning. In April, when flower buds appear, water once a day. In May, after it enters the flowering season, if the potting soil is too dry or too wet, it will cause flowers to drop. Usually water once at around 8 a.m., and at around 4 p.m., check the situation and add an appropriate amount of water if needed.
5. Fertilizing Method
Chinese roses grown in pots can be given an appropriate amount of additional fertilizer: 50g of fertilizer for one-year-old plants, 70g for 3-year-old plants, and 100g for 4- to 5-year-old plants.
II. Key Points for Planting Chinese Roses
1. Chinese roses can adapt to cold environments and can withstand low temperatures of -10°C. Generally speaking, in the south there is no need to move them indoors to overwinter; it is enough to place them under a south-facing eaves. After flowering in October, there is no need to prune branches, so as not to let new shoots grow. Stop applying nitrogen fertilizer, and instead apply phosphorus or potassium fertilizer, so that the branches become strong and sturdy, to improve cold resistance.
2. Usually, when the newly grown shoot tips reach 15 to 20 cm, cut off about the top 3 cm to let the lateral buds sprout. When the lateral branches have grown to a similar length, continue pinching off the tips until the required number of branches is reached.
3. The pots of Chinese roses grown in pots dry out very easily, and nutrients are also easily lost, so during the growing period they should be watered and fertilized at any time. In spring, after watering thoroughly once every 2 to 3 days, as the temperature rises, change to watering once a day; in the hot summer, an appropriate additional watering should also be given once a day. However, do not let water accumulate in the pot. After heavy rain, pay attention to drainage, otherwise long-term water accumulation will cause the roots to rot.
The above is all of the editor's introduction on how to grow Chinese roses and the key points for planting them. When growing Chinese roses in daily life, you must pay attention to some related matters, so that you can grow beautiful Chinese roses.