Temperature conditions
Hibiscus sunflower has strong adaptability to temperature, which can withstand both cold and summer heat. However, under the condition of extremely low temperature in northern winter, thermal insulation measures are needed p>
Illumination conditions
Hibiscus sunflower likes light very much. Long time light can make it bloom vigorously. If the light time is too short, it will be difficult to grow flower buds and bloom normally p>
Fertilizer management
Hibiscus sunflower doesn't need much fertilizer. Even without fertilizer, it can still grow and bloom as usual. However, if some fertilizer can be applied appropriately according to its growth status, the number and quality of flowers in bloom can be greatly improved. The flower generally begins to sprout and grow in May. In the period of vigorous growth, we should pay attention to the fertilization based on phosphorus and potassium fertilizer. When newly planting seedlings, you can lay a layer of base fertilizer first, and then plant the seedlings. It should be noted that whether it is base fertilizer or ordinary fertilization, you should keep a certain distance from the root system of the plant. Never let the fertilizer directly contact the root of Hibiscus sunflower, otherwise it is easy to burn the root system and affect the growth of the plant p>
Water management
Hibiscus sunflower is relatively suitable for the humid growth environment. In the process of cultivation, we should pay attention to watering in time to keep the soil moist. We should avoid being too dry and insufficient water. If it is too dry and lack of water, it is easy to cause the flower buds to wilt and fall off. Water immediately after each fertilization to keep it moist and prevent root burning p>
Pruning and curing
Hibiscus sunflower should be trimmed as soon as possible after the flowering period, and all withered residual flowers, branches and seeds should be cut off, so as to reduce the consumption of nutrients and increase the number of flowers next time. Every time the flowers wither, they should be pruned in time. If they are not pruned, the quantity and quality of flowering plants will gradually decline in the future p>
Pest control
Hibiscus sunflower often suffers from leaf spot disease, especially in summer, when high temperature, humidity and heat are the most easily induced period. In addition to using some liquid medicine for spraying treatment, the more important thing is daily prevention. Pay attention to maintaining the air circulation of the environment, and trim the branches with too dense growth in time to prevent the occurrence of leaf spot disease p>