The beautiful sunflowers, Asteraceae, and Helianthus are native to North America, and they belong to the same family as the ornamental sunflowers and Jerusalem artichokes (Aronia). However, they are perennial perennial flowers. Stem erect, many branches, lower leaves opposite, upper leaves alternate, long oval, leaves up to 18 cm, width 12 cm, tip apex, three outgoing veins, serrated leaves, rough leaves. Early flowering, plant height 18 cm began to flower. Heads solitary shoots. The flower diameter is from 4 cm to 12 cm, and the tongue petals are golden yellow, wide linear and 2 cm to 5 cm long. The petals of the outer wheel were flattened and then rolled outwards. The petals of the inner wheel were arranged closely. The plump central protrusions of the outer wheel were not visible and the head was a corolla. As the tongue-like petals embrace the flower heart, the hermaphroditic flowers are surrounded, the segregation affects the pollination, and there is little chance of pollination. Therefore, the seeds are not easy to mature and are often propagated by foot buds. Long flowering period, open field planting in late June, natural flowering period of 110 days. Each flower blooms 11 days in midsummer and 18 days in mid-autumn. As long as the stubble is continuously removed, even if it is a tree, it can open a hundred bright golden flowers. When the buds of the foot buds reproduce the early spring snow, transparent plastic film arches are used to increase temperature and germination. Seedlings 5 ​​cm to 10 cm in height were dug up and the ramets were ready for early cutting. After the first ramets, the roots were planted and covered with 2 cm to 3 cm soil and then germinated until the shoots grew again. Then the roots were planted, and they were still flowering into the piers. Each year, each pier can be divided into about 50 foot buds. Separated foot buds can be planted directly on the ground according to the climate or be bagged indoors. Greenhouse cultivation is preceded by foot bud cutting. It blooms from March to April. If the National Day is required to enter the full flowering period, foot buds can be planted in late June, transplanted and planted in early August, and bloom in mid-to-late September. Because of its strong rooting ability and many shoot buds, if no ramets affect the diameter of the flower in the second year, it is necessary to dig out 2/3 of the roots for planting. Extensive care and management of beautiful sunflowers, strong adaptability, soil requirements are not strict. Acid and alkaline soil can all flower. Strong cold resistance, winter without any protective measures can safely winter, in the open air, where the wind does not accumulate snow, with their own stubble cut cover, natural snowfall can guarantee winter. The beautiful sunflower is highly resistant and has a survival rate of 100%. No pests and diseases. Xiqiang light, no sunburn phenomenon, open-field cultivation of water once per day for 10 days, hi fat but not excessive, heavy fertilizer although large, but easy to lodging. Transplanting flowers for 4 hours during flowering must be watered without artificial trimming and the crowns are naturally plump. The beautiful sunflower has many advantages and is suitable for landscaping and beautification. In particular, cold northern areas such as hedgerows, flower borders, sub-vehicles and parks, squares, courtyards, street gardens, flower beds and other groups are excellent materials worthy of application.
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