1. Illumination: Hibiscus rosa-sinensis flowers like the sun, especially in winter when the light is warm and soft. They must be exposed to the sun more often. If the light is insufficient, buds will fall and no blossoms will occur.
2. Temperature: The Hibiscus rosa-sinensis flowers are afraid of freezing. After the National Day every year, the Hibiscus rosa-sinensis flowers should be moved indoors for maintenance, and the maintenance temperature should be above 15 . Otherwise, it will cause the leaves of the plants to fall, and then affect the growth, development and flowering of the plants in the future.
3. Watering: Fusang flowers like loose and fertile soil with good drainage. On this basis, when the water in the soil is nearly dry, water it thoroughly. You can insert a stick along the edge of the basin and pull it out to have a look. If the stick is dry, water it.
4. Fertilization: The temperature is low in winter. Do not fertilize the domesticated Hibiscus rosa-sinensis flowers to avoid fat injury. Unless the Hibiscus rosa-sinensis flowers are raised in a heating room in winter, you can irrigate some decomposed organic fertilizer water every half month. The lighter the concentration, the better.
Hibiscus rosa-sinensis should not be cut heavily in winter, which is very harmful to Hibiscus rosa-sinensis in winter. If there are residual flowers, you can cut them lightly. Cut off the residual flowers and 1-2 pairs of leaves under the flowers. When the temperature rises in spring, you can cut them again. When you cut them again, you can keep 2-3 buds on the old branches, which can promote the germination of new branches and make Hibisci rosae-sinensis blossom more and have bigger flowers.