Methods for maintenance and management of hibiscus flowers
As a representative of tropical plants, Hibiscus chinensis is favored by horticulture enthusiasts for its gorgeous and huge flowers. To achieve the effect of continuous flowering throughout the year, it is necessary to master the maintenance points of its special growth habits. This paper will systematically analyze the scientific cultivation methods of Hibiscus japonica from light regulation to overwintering protection. Light control strategy for the core four elements of hibiscus flower maintenance Hibiscus flower is a typical positive plant, and 6 hours of direct light per day is the minimum requirement. Full sunshine maintenance can be carried out in spring and autumn, and a 50% sunshade net needs to be built in summer to prevent leaf burns. In winter, it should be placed on a south-facing sill. When filling light through glass, pay attention to rotating the flowerpot regularly to ensure that the plants receive even light. The scientific watering cycle adopts the principle of "seeing wet when it is dry". Water is poured every 5 days during the spring germination period, the high temperature period in summer is shortened to 3 days, and the water is controlled to 15 days per time during the winter hibernation period. It is recommended to use slightly acidic water with a pH of 6.0 -6.5, with rainwater or tap water left standing for 24 hours being best. A 3cm ceramsite layer needs to be placed at the bottom of the potted plant to prevent stagnant water and root rot. The precise fertilization plan applies a compound fertilizer of 15-15 -15-15 of nitrogen, phosphorus and potassium every half month during the growth period (March to October), and changes to high-phosphate fertilizer (10-30-10) during the flower bud differentiation period. Topdressing application of decomposed sheep manure in late autumn improves cold resistance, and the amount per pot is controlled within 200g. Iron chelate fertilizer can be sprayed monthly on the leaves to prevent yellowing. The substrate ratio is optimized using a mixed substrate of peat soil + perlite + humus soil + river sand of 4:3:2:1, and bone meal is added as base fertilizer when changing pots every two years in spring. Potting plants should be made of breathable containers such as red pottery pots. The diameter of the pot is preferably 10cm smaller than the crown width to avoid excessive water causing water accumulation. Special season management points: Temperature control techniques maintain the optimal growth temperature of 18-28℃. Ventilation needs to be strengthened if it exceeds 35℃ in summer, and above 12℃ in winter. Overwintering protection can be achieved by building a small greenhouse or using plant fill light, and the temperature difference between day and night can be controlled within 5℃. Pest and insect pest control regularly inspect the back of leaves to prevent red spiders. When pests are found, spray with azedra oil diluent immediately. Spray mancozeb before the rainy season to prevent (T-J) disease, and keep the plant spacing more than 50cm to ensure good ventilation.
Through systematic maintenance and management, hibiscus flowers can achieve annual flowering. The key is to grasp the dynamic balance of light, warm water and fertilizer, keep warm and cold in winter, and pay attention to covering shade and reducing dryness in summer. Combined with regular pruning and pot changes, the plant can maintain strong vitality and continue to bloom gorgeous flowers.