The thick stems of double hibiscus may be caused by insufficient sunlight and water. Hibiscus has a cool, humid and sunny climate. The soil is fertile, neutral to slightly acidic, drought-resistant, barren, semi-cloudy, waterlogging-resistant and cold-resistant. The suitable growth temperature is 15-28℃. Hibiscus enjoys sunshine and is slightly tolerant of shade. Like warm, humid, cold-resistant, in most parts of North China can safely overwinter in the open air. I like fertile and loose soil with good drainage. Not tolerant to drought, drought and waterlogging.

Matters needing attention in raising double-petal hibiscus flowers

Hibiscus has strong adaptability, easy growth and easy cultivation and management. From February 65438 to March of the following year, in the dry season in the south, hibiscus entered a semi-dormant state, and the management was mainly to water and protect seedlings. The high temperature and rainy season is 5438+00 from April to June. In April, plants can be cut short, fertilizer and water management can be strengthened, new shoots can be promoted, and flowers can flourish.

Hibiscus flowers can be transplanted in spring and autumn, and bare roots can be dipped in mud, and some branches can be cut off properly, which is very easy to survive. When planting, base fertilizer should be applied to the planting hole. Generally, compost or decomposed ring fertilizer should be applied with a small amount of compound fertilizer, and no fertilizer can be applied in the future. However, in order to improve the yield and quality of flowers, topdressing should be applied to trees with weak tree potential before flowering in summer, and appropriate compound fertilizer can be added to cooperate with weeding and soil improvement.

Extensive management can also flourish naturally. Pay attention to drainage and waterlogging prevention in rainy season, irrigation in case of drought in flowering period, and cut off late autumn branches, over-dense branches, weak branches and dead branches in late autumn to facilitate ventilation and light transmission, maintain plant shape, and prevent cold and winter. Hibiscus flowers planted as hedges should be pruned 2 to 3 times before germination and during spring growth.