What flowers are suitable for growing in Huangnan
Located on the northeastern edge of the Qinghai-Tibet Plateau, Huangnan Tibetan Autonomous Prefecture has a unique geographical location that creates its special climate and environment. The average annual temperature here fluctuates around zero, and strong ultraviolet rays interweave with thin air, forming typical plateau plant growth conditions. To cultivate gorgeous flowers in this land, we need to accurately grasp the local climate characteristics and plant growth laws. The impact of plateau climate on flower planting, the particularity of temperature and light, the average annual sunshine duration of more than 2500 hours, gives Huangnan the characteristics of "City of Sun". Strong solar radiation allows sun-loving plants such as Gesang and calendula to fully synthesize, but it also requires growers to pay attention to building sunshade nets to prevent burns during noon in summer. The temperature difference between day and night can reach 20℃, allowing tuber plants such as dahlia and peony to accumulate sufficient nutrients. Precipitation and humidity control is concentrated on the rainy season from June to September alternating with the long dry season, requiring the use of drip irrigation systems to maintain soil moisture. When planting varieties that require large water, such as hollyhock and blubriasis, it is recommended to cooperate with humus soil to improve sandy soil and improve water retention capacity. When the air humidity in winter is less than 30%, a spraying device needs to be used to maintain the greenhouse environment. Recommended for planting special flowers in Huangnan, the preferred variety for open field cultivation, which has strong stress resistance, can grow naturally at an altitude of 3500 meters. Its long flowering period from August to October has become a landmark landscape on the plateau. Combine it with planting purple-colored sage and golden coreopsis to form a rich flower border. Peony, peony and other perennial flowers need to be treated for cold prevention before winter. Key points for indoor potted plant maintenance In an environment with a large temperature difference between day and night, Clivia, orchids, etc. need to maintain a constant temperature above 15℃. Using ceramsite as a base and peat soil can effectively solve the problem of watering and freezing. Monthly application of potassium dihydrogen phosphate can enhance the ultraviolet resistance of green radish and spider plants. It is recommended to use rotating flower stands to ensure that the plants receive even light. Status quo of plateau characteristic plants Although Huangnan has not yet officially established a city flower market tree, native plants such as Artemisia greenosa, which has sacred significance and Rhodiola, which has high medicinal value, have attracted much attention in Tibetan culture. The forestry department has carried out large-scale trial planting of shrubs such as cloves and rose rose in recent years, providing an important reference for the selection of urban greening species in the future.
Through scientific selection of varieties and refined maintenance and management, a unique flower landscape can be created on the plateau of Huangnan. With the enhanced awareness of ecological protection, local plants with both ornamental value and ecological adaptability may become new options for urban greening.