Hibiscus rosa-sinensis does not have a high requirement for soil, and it can adapt to the soil well except for the soil with a lot of salt and alkali.It is better to use loose, fertile and well-drained slightly acidic clay soil.
It likes warm climate environment, the optimum temperature is between 15-25 .In winter, it should be moved to indoor cultivation at room temperature of 15-22 C, otherwise it will not be able to survive the winter in the northern region.
It should be well watered, usually once a day, mainly thoroughly watered.In summer, water once a day in the morning and evening, and spray water frequently to increase the humidity of the air and prevent the flowers and leaves from falling early.In winter, watering should be reduced and fertilization should be stopped to make it safe for winter.
Give it more than 8 hours of light a day.If the light is insufficient, the buds will fall off, the flowers will shrink and the color will be dull.But in summer, it needs to be shaded to avoid direct sunlight.
Plant.
Hibiscus rosa-sinensis needs a large amount of fertilizer, so organic fertilizer, phosphate fertilizer and decomposed compost can be used as base fertilizer; Apply 1-2 times a month with some urea water solution and light fertilizer based on phosphate fertilizer.
Repotting should be carried out before moving outdoors in early spring in April.There are three things to do when repotting: one is to put in new soil; The second is to cut off part of the over-dense curled fibrous roots; Third, apply enough base fertilizer to ensure soil fertility.
