The maintenance points of upside-down admiralty are as follows: 1. Place the plant in a cool, ventilated, cool and rainproof place; Spray water on the leaves and the ground several times a day to reduce the temperature and increase the air humidity. The second is to stop watering and fertilizing perennial plants and successfully pass the dormancy period. Plants should enter the room before the first frost and leave the room after Tomb-Sweeping Day, and the room temperature should be kept above 5℃. In case of cold current, snowstorm and outdoor icing, it is best to move back indoors. Picking and shaping is suitable for perennial plants in winter. Cut off the top shoots of 5 cm to 6 cm to promote their multi-branching. Short, thin, drooping branches lie dormant in summer, making autumn blossom luxuriantly. When the newly cultivated seedlings grow to 20 cm to 30 cm, the top is removed and the stem is fixed, and the lateral branches are promoted to form a multi-branch or even branched plant shape. Beginning of autumn conducted the second coring before and after, and ushered in the second flowering period. Prune and reshape the whole plant before entering the house, cut off dead branches, weak branches, internal branches and over-dense branches, cut off short and long branches, concentrate nutrition, promote winter buds and lay the foundation for the coming year. How to maintain the upside-down Admiralty In order to make the upside-down Admiralty flourish, the daily maintenance and management should pay attention to the following aspects: ① Changing pots and turning pots. Seedlings that survive cutting or sow must be changed several times from small pots to medium pots and then to large pots. Its plants need to turn 1 time every spring or autumn before germination. The substrate should be fertile, loose and well-drained culture soil. Generally, Gaza loam with decomposed organic fertilizer and phosphate fertilizer can be mixed evenly without applying base fertilizer to avoid root rot. ② Fertilization. Because the upside-down Admiralty grows fast and has many flowering times, thin fertilizer should be applied frequently during the growing period, and pancake fertilizer or compound fertilizer should be applied every 10 day/time. Liquid fertilizer 1 time, which is mainly phosphorus and potassium, should be applied every month in flowering period, but fertilization should be stopped in high temperature season. Before fertilization, the basin soil should be dry; After fertilization, spray water with a fine nozzle 1 time to prevent the leaves from being rotted by fertilizer. ③ temperature. The growth temperature of upside-down golden bell is 10~28℃, and the temperature should not exceed 30℃ in summer, so the cooling work should be done well in summer. Sunshine is needed in winter, and the culture temperature should not be lower than 5℃, otherwise it will cause freezing injury, and heat preservation measures must be taken. In addition, whether in winter or summer, we should pay attention to ventilation. 4 water. Water should be done when it is dry, and it should be thoroughly watered, so as not to accumulate water. It is best to dry the pot soil in summer, but pay attention to spraying water on the leaves and the ground. ⑤ Picking and pruning. ⑥ Place. In order to keep the plant shape of upside-down Admiralty full, it is necessary to change its position frequently during the growing period, so that the plant can receive light evenly and avoid leaning to one side and destroying the plant shape. However, it is necessary to move less during flowering, otherwise it will cause buds to fall and flowers to fall.