After autumn, the temperature gradually drops and the sunshine weakens. For many people who love to plant flowers, they need to plant flowers according to the climate characteristics of this season in order to spend autumn and winter smoothly. After beginning of autumn, the weather became cold. For some foliage flowers, such as asparagus, chlorophytum, cycad and so on. Generally, dilute liquid fertilizer is applied once every half month to keep the leaves green and improve the cold resistance. Chrysanthemum, camellia, azalea, etc. That is, flowers bloom once a year, and liquid fertilizer based on phosphate fertilizer should be applied in time to ensure sufficient nutrients to make them bloom more and more; Rose, Milan, jasmine, etc. Flowers bloom many times a year, so we should provide them with enough fertilizer and water to keep them in full bloom; Used for some fruit ornamental flowers, such as kumquat, bergamot, pomegranate and so on. Thin liquid fertilizer, mainly phosphate fertilizer, should be applied once or twice. With the gradual decrease of temperature, except for autumn sowing flowers that bloom in autumn and winter or early spring, watering times should be reduced to avoid excessive water and fertilizer, resulting in excessive branches and leaves, which will affect flower bud differentiation and freezing injury. First, indoor insulation In this season, most woody flowers, bonsai and perennial herbs in the south will be moved indoors, such as banyan, hibiscus, poinsettia, begonia, cyclamen, hawksbill, African jasmine, Milan and rubber trees. With the increase of temperature difference between day and night and the decrease of temperature at night, perennial flowers will convert chlorophyll into anthocyanins and carotene, resulting in defoliation. Although plants will not die, they will also cause a lot of fallen leaves or yellow leaves, which will lose the ornamental effect. Second, water and fertilizer are suitable. Potted flowers grow slowly in autumn. For most flowers, it is necessary to control the amount of watering and stop fertilization from now on to avoid excessive growth of branches and leaves caused by rotten roots and excessive fertilization. As for the flowers that bloom around the Spring Festival, such as Cyclamen, Clivia, Camellia, Rhododendron and so on. They have passed the dormancy period and started to enter the peak period of growth. Therefore, the management of fertilizer and water should be strengthened from autumn, and phosphorus and potassium fertilizers can be appropriately applied to facilitate the formation of flower buds. Three. For annual herbaceous flowers, attention should be paid to the collection and preservation of seeds. Some biennial flowers, such as pansy, carnation, sunflower, hollyhock, etc. This is a good time to sow. Pay attention to spraying water after sowing to keep the soil moist. There are also some woody flowers suitable for cutting in autumn, such as roses, geraniums and jasmine. The survival rate of cutting in autumn is high. For perennial flowers that grow densely and need branching, such as peony and peony, they should be branched and propagated in time. For flowers that bloom around the Spring Festival, such as hyacinthus orientalis, Tulip, Zhu Dinghong, etc. We should put them in the flowerpot as soon as possible. Sowing and transplanting should be done in time in autumn. Mature seeds of flowers and trees should be harvested in autumn, and tulips, begonia and snapdragon should be planted. Over time, especially seeds that are easy to lose their germination ability. Sow in time in autumn, combine pruning with cutting flowers and trees. Such as cut rose, rose, rose, etc. The survival rate is very high. 4. Prune most flowers reasonably, such as jasmine, crape myrtle and pomegranate. Pruning and shaping in autumn can reduce the consumption of nutrients in winter and promote the flowering of potted flowers in the second year. When pruning, remove diseased branches, dead branches, over-dense branches and over-flourishing branches to lay a good foundation for potted flowers to overwinter. Five, pest control Autumn is an important period for flower pest control. Before potted flowers enter the room, in order to prevent the source of overwintering diseases and pests, drugs can be sprayed for prevention.