What flowers are suitable for cultivation in Longnan
In Longnan, located in the southeastern part of Gansu, the unique climatic transition features make it a natural greenhouse for flower cultivation. From the misty high mountains to the sunlit river valleys, diverse ecological environments nurture rich plant communities. Which flowers can bloom here with their vibrant colors? Let's explore this city known as the 'Jiangnan of Longnan' to uncover its green code.
Climatic stratification planting code
Plant map of three climatic zones
Longnan's vertical climatic distribution from north subtropical to mesothermal zones creates a three-dimensional plant growth space. In the north subtropical area below 1100 meters altitude, with an annual average temperature stable at 12-14°C, it is especially suitable for cultivating warm-loving flowers such as Hippeastrum and Wisteria. In the mesothermal mountainous areas above 2000 meters, cold-resistant varieties like Fuchsia and Dahlia appear more beautiful in the temperature difference between day and night.
Ingenuity in utilizing microclimates
In the valley of the Bai龙江 River, a unique microclimate is formed due to abundant water vapor. Here, roses can bloom in three seasons, and peony flowers can reach a diameter of 30 centimeters. Sunny slopes sheltered from the wind are ideal for planting tulips, whose bulbs can still safely overwinter in temperatures as low as -10°C.
Recommended list of characteristic plants
Preferred courtyard economic varieties
The combination of honeysuckle and oleander is classic—honeysuckle can be used as a hedge to beautify the courtyard, while oleander is both an economic crop and provides shade. The combination of red bean and green peach can create a landscape effect with flowers in three seasons, and cold water flowers are particularly suitable for decorating moist artificial mountains.
Interdisciplinary planting of characteristic crops
Oilseed rape fields form a golden sea of flowers in spring, which can be rotated with marigolds to continue the landscape value. Planting cornflower and oleander together can both fix nitrogen and improve the ornamental value of the park. This agricultural and tourism integration model is becoming a new trend in Longnan agriculture.
Cultural interpretation of the city symbol
The character of the city symbolized by forsythia
As the city flower, the forsythia's ability to bloom in cold weather reflects the resilient spirit of the people of Longnan. In the urban parks of Wudu district, golden flower waterfalls can stretch for 2 kilometers in early spring, complementing the ancient city walls. Gardeners have cultivated six new variants, including double-petal and pendulous types, through temperature control technology.
The industry legend of olive trees
The olive trees introduced in 1975 have now developed into an industry base of 100,000 acres. These Mediterranean visitors show astonishing adaptability in Longnan, with individual plants producing up to 50 kilograms of fruit per year. Their silver-gray leaves remain evergreen, and in autumn, the purple-black fruits and golden ginkgo leaves create a unique urban autumn scenery.
From courtyard flowers to economic forest trees, Longnan writes a harmonious chapter of ecology and development with green. When forsythia wakes up the mountains and fields in early spring, and olive forests whisper in the autumn wind, this northwestern flower city tells its own growth story to the world with its unique plant language.