How to grow Chinese roses to make them bloom and fill the pot
If you want to learn how to grow Chinese roses to make them bloom and fill the pot, this is a very good explanation of green plant flowers. It's recommended to save this useful knowledge!
How to grow Chinese roses to make them bloom and fill the pot
Many people are growing Chinese roses, and because they bloom beautifully with many varieties, more and more people are taking an interest. However, they also have high requirements for the care environment.
How to grow Chinese roses well
1. Keep ventilation
Why do Chinese roses have pests and rotting leaves? It's because our care environment lacks proper ventilation. Therefore, we need to ensure good ventilation. Some gardeners say they are growing them in a closed balcony, in which case, it's better not to grow Chinese roses.
If you really want to grow them, we need to add artificial ventilation equipment, such as an indoor-outdoor ventilation fan. Or, if we don't have many plants, after watering, we can use a fan to blow air at them for a few hours a day. This artificial increase in air circulation helps prevent pests and diseases.
2. Fertilize frequently
Fertilization is needed every month to ensure sufficient nutrients. Some gardeners only fertilize their Chinese roses once or twice a year, leading to yellowing leaves and weak growth. Therefore, regular fertilization is necessary.
During the growing season, you should use a balanced nitrogen-phosphorus-potassium fertilizer to promote branch and leaf growth. Potash fertilizer can make the trunk thicker and the roots more developed.
Phosphate fertilizer helps rapid differentiation of flower buds. If the plant is about to bloom, you should see the buds and provide enough phosphorus. Using high-phosphorus flower fertilizer like "Flower More No. 2" or potassium dihydrogen phosphate is sufficient. Fertilize two to three times a month, but don't use too high a concentration.
Applying thin layers of fertilizer frequently will provide enough nutrition, allowing the plant to grow lush and leafy quickly. During the blooming period, this can lead to a full pot without nutrient deficiencies, ensuring abundant bloom nutrients, preventing yellowing or weak growth.
3. Spray pesticides frequently
Chinese roses are often referred to as "medicinal jars" because our care environment cannot match outdoor conditions, leading to poor ventilation. Even with some indoor ventilation, they can easily attract pests, especially during continuous rainy periods.
After rainy days, high humidity and dampness can lead to leaf rot. Therefore, we should take preventive measures before it rains to control pests and diseases. Poor ventilation during extended rainy periods is inevitable.
Generally, we should regularly check the weather forecast and apply pesticides in advance if continuous rainy weather is expected. Using carbendazim can prevent problems before they start and should be kept at home.
Insecticides like abamectin and pymetrozine are suitable for use. During rainy or overcast days, apply insecticides once, with a 2 to 2-hour interval between the two types. Normally, spray insecticides and fungicides every half month on sunny days to keep Chinese roses pest-free and disease-free for a year.
What to pay attention to when growing Chinese roses
1. Thrips pest
Recently, thrips pests have been prevalent, mainly manifested by畸形 and scars on the new leaves of Chinese roses. If no new buds appear, pay attention to whether the new buds are black or withered, which may be caused by thrips.
Thrips are difficult to completely eradicate, but there's no need to worry too much. Thrips are relatively easy to control as long as their numbers are kept in check, and they won't cause significant damage to new Chinese rose buds.
To control thrips, it is recommended to spray carbosulfan or lambda-cyhalothrin diluted on the branches, leaves, and soil surface of Chinese roses in the evening or after sunset for better pest control. Note that thrips are more active at night, so it's better to spray in the evening rather than in the morning.
2. Black spot disease
Excessive rain can worsen black spot disease. In the face of severe black spot disease, persistent treatment is necessary. After a week, apply a combination of carbendazim and pyraclostrobin, and after another week, use zineb and myclobutanil.
If the black spot disease is mild, one application of medication is usually enough to control it. For severe cases, two to three treatments are needed to cure it, followed by regular preventive measures.
3. Red spider mites
Autumn is the season when red spider mites are prevalent, especially for Chinese rose potted plants grown on indoor balconies with poor ventilation. It's important to take preventive measures now and add miticides when spraying vaccines.
Also, when watering, spray more water on the leaf backs to not only wash away newly emerging red spider mites but also increase humidity and prevent their occurrence.
This article shares a comprehensive method for growing Chinese roses to make them bloom and fill the pot, hoping to solve your problems with green plants.