1、 Soil

Hibiscus doesn't have high requirements for soil. It can adapt well except for the soil with more salt and alkali. It is best to use loose, fertile and slightly acidic clay with good drainage

2、 Temperature

It likes warm climate and environment, and the optimum temperature is between 15-25 ℃. In winter, it should be cultivated indoors at room temperature of 15-22 ℃, otherwise it will not be able to survive the winter in the north

3、 Watering

It should be watered adequately, usually once a day, mainly thoroughly. In summer, water every morning and evening, and often spray water 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

4、 Illumination

Give it more than 8 hours of light every day. If the light is insufficient, the flower buds will fall off, the flowers will shrink and the color will be dim. But it needs to be shaded in summer to avoid direct sunlight

Plant

5、 Fertilization

Hibiscus syriacus needs a large amount of fertilizer. It can be mixed with an appropriate amount of organic fertilizer, phosphate fertilizer and decomposed compost as the base fertilizer; Apply fertilizer 1-2 times a month with some urea aqueous solution and light fertilizer dominated by phosphate fertilizer

6、 Change Basin

The basin should be changed before moving out of the room in early spring and April every year. Three things should be done when changing pots: first, replace with new culture soil; The second is to cut off some dense curly fibrous roots; Third, apply sufficient base fertilizer to ensure soil fertility