1. The sunshine time is longer. Roses are masculine flowers, potted roses should have at least 5 hours of light every day. Long sunshine hours are conducive to flowering and bright colors. Conducive to plant health and reduce the occurrence of pests and diseases. Therefore, sufficient light is the primary condition for the flowering of Chinese rose.

2. Fertilization should be timely. All flowers that remain in full bloom in the flower season require sufficient nutrients and are constantly replenished, and roses are no exception. Fertilize frequently during the growth period of Chinese rose. This is because the time interval of Chinese rose is about 1.5 months, and it needs to repeat the growth and development process of budding, branching and flowering, which consumes a lot of nutrients and needs continuous supply to ensure normal growth and development. Under normal circumstances, fertilize the rotten pancakes once every 10 day, and once a week in the prosperous period. Apply 1-2 times of available phosphorus fertilizer at the stage of pregnancy and bud flowering, and apply more phosphorus and potassium fertilizer after autumn to control the growth of new branches. After 10 months, less or no fertilization is beneficial to overwintering. With the growth of potted rose, it is necessary to change pots and soil every year and apply sufficient organic fertilizer to facilitate the development of root system. Water and loosen the soil in time after each topdressing to keep the soil loose and well ventilated.

3. Continue pruning. In order to maintain the vitality of rose growth and produce more and better flowers, it is necessary to prune and cut off some old branches to promote new buds. Because roses are in full bloom on the new technical strips of that year. Potted roses should be pruned in early spring, and all dead branches, diseased branches, weak branches and horizontal branches should be cut off from the base. According to different varieties, a certain number of axillary buds that grow outward can be reserved to form an appropriate number of flower branches. Generally, about 1/2 branches with strong growth are cut off, and about 2/3 branches with weak growth are cut off, leaving 3-5 strong main branches, so that the flowers can be big and bright. In June 5438+ 10, the residual pedicels should be cut off in time after the flowers wither to promote the rapid germination of new buds.