1, soil
Roses like loose and fertile slightly acidic soil, and their air permeability and water permeability must be good. Rotten soil is the best choice for growing roses. It is not only loose and breathable, but also nutritious. However, it has good water retention. Therefore, in order to prevent water accumulation in basin soil, a part of granular soil should be added to enhance the drainage of soil. Only in this way can we maintain the root system of roses.
2. Water and fertilizer
Roses are drought-tolerant and avoid waterlogging. Watering should be based on the principle of no watering, but it should be watered thoroughly. Usually, the water in the basin should be avoided or too wet and waterlogged, especially before and after flowering. Pay more attention to watering when the soil in the basin is dry.
Roses like fertilizer, and liquid fertilizer should be applied every half month during the growing period. You can mix the decomposed cake fertilizer with bone meal, dilute it with water, and then dump it. Before flowering, we should add 1~2 times of phosphorus and potassium fertilizer to facilitate the flowering of roses.
3. Temperature and lighting
Roses like the growth environment of warm sunshine, are relatively cold-resistant, and are suitable for growing in the warm environment of 15~25 degrees; Roses are positive plants, and it is better to have no less than 6 hours of sunshine every day. If the light is insufficient, it will grow white without flowering. Family potted roses should be placed in Nanyang terrace, sunny south windowsill and other sunny places for maintenance.
prune
The flowering period of roses is from May to August every year. After the rose withers at the end of August, before the winter dormancy period comes, the aged branches, pest branches and delicate branches of the rose should be pruned thoroughly, which is beneficial to nutrient concentration and accumulate enough energy for the vigorous growth and flowering of the rose in the coming year.
5, pest control
Roses tend to be hot and humid in summer, when the growth environment is poorly ventilated? Suffering from powdery mildew, black spot and other diseases, therefore, in the usual feeding process, we should attach great importance to the ventilation of the environment, and often open the window for ventilation to reduce the infection and erosion of germs.
At the same time, spraying 800 times chlorothalonil solution on leaves and spraying water on leaves frequently can reduce the incidence of powdery mildew. Spider is the most common pest, and it can be killed by spraying 600 times of mite death liquid at the beginning of the disease.