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The hibiscus is a genus of barrier flowers and bream flowers, which are Malvaceae and Hibiscus plants. It is native to the central region of China. It is an upright shrub in the north, and can grow into small trees in the south, up to 2 to 6 meters. Leaves alternate, oval-shaped oval. In summer and autumn, the flowers are solitary in leafhoppers, with short stems, flowering diameters from 5 cm to 8 cm, single or double petals, purple, pink, white, etc. The pods are oval in shape and the seeds are dark brown when they are ripe. Hibiscus flower long, rich in color, is one of the park's important flowering shrubs. Hibiscus is adaptable, resistant to soot, and capable of absorbing harmful gases such as sulfur dioxide, chlorine, and hydrogen chloride. Bark, stems and seeds of Hibiscus can be used as medicine. Propagation methods: Propagation hibiscus is generally used for cutting. The specific method of cuttings is: In spring March, before the branches are sprouted, the cuttings are trimmed with strong branches from 1 to 2 years old, cut into small pieces of 15 cm to 17 cm, and inserted into seedbeds. The depth is 10 cm to 12 cm. It is advisable to have a spacing of 20 cm and 50 cm. Seed beds should be ploughed in advance, finely chopped, smoothed, and immediately after the cuttings, they should be filled with water, and an arched bamboo strip should be inserted every 50 centimeters on the seedbed and covered with plastic film to achieve the effect of heat preservation and moisturizing. After more than a month can take root, the general survival rate of more than 90%. Summer and autumn cuttings do not need to be covered with plastic film, pay attention to watering, moisture shading can be. Cultivation and management: Hibiscus, hi light, hi water, hi warm and humid climate, but also slightly resistant to half shade, not to choose the soil, easy to manage. From the spring to early summer flowering period, the gardenia can be filled with water 1 to 2 times to promote vigorous growth. Mud-resistant pruning, after the autumn leaves or sprouting in the spring, should cut off the dry branches and diseased branches, weak branches, pests, to facilitate the renewal of branches. Prevention of pests and diseases: wood lice are vulnerable to aphids and leaf roller insects, and care should be taken to prevent them. (Source: China Flower News Yan Junfu Li Guiying)
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