What flowers are suitable for growing in Simao
Located in Simao at 22° north latitude, its unique geographical location creates a unique ecological landscape. The subtropical climate here has an average annual humidity of 75%, providing a natural greenhouse for more than 3000 species of plants. When we stroll the streets, we can always see all kinds of flowers and tea trees complementing each other, forming a flowing picture of plants. 1. Basic conditions for the growth of Simao plants 1. The dual advantages of temperature and humidity are combined with an average annual stable temperature of 19.5 ° C and an annual precipitation of more than 1100mm, forming a microclimate with a temperature difference between day and night of 8-10 ° C. This environment is particularly suitable for the development of aerial roots of epiphytic plants such as dendrobium, and also allows rhododendrons to obtain sufficient water during the rainy season. 2. Special soil structure, acidic soil (pH 5.2 -6.0) with alternating red soil and yellow soil, is rich in humus and iron and aluminum oxides. Test data showed that the organic matter content of the surface soil reached 4.8%, providing an ideal substrate for acidophilic plants such as camellia and orchids. 2. Preferred list of garden plants 1. The plant layers of the arbor layer are equipped with fragrant wood and Pu 'er tea trees to form an evergreen skeleton, and the seasonal changes of Betula alnoides add to the landscape level. Measured data shows that the canopy width of 5-year-old Pu 'er tea can reach 3.5 meters, which is a natural sunshade barrier. 2. The year-round blooming characteristics of the shrub and flower combination bougainvillea and the spring scenery of rhododendrons form a chronological match. Through comparative experiments, the average number of flowering days of the local variety Bougainvillea reached 280 days, 45 days more than the introduced variety. 3. The epiphytic combination of herb plants with orchids and dendrobium can save planting space. Actual measurements show that the air humidity in areas where the two are mixed is 12% higher than that in a single planting area. Hosta and lily of the valley are selected for the ground cover layer, which are shade tolerant and adapt to the tree shade environment. 3. Urban ecological cultural symbols 1. Three-dimensional application of dendrobium flowers As a city flower, dendrobium has formed a characteristic planting model in Simao. On the phoenix wood on the main road, each plant has an average of 8 species of dendrobium, and its flowering period lasts from March to November, forming an aerial flower corridor. 2. The economic value of Pu 'er tea trees The ancient tea tree community produces 120 tons of high-quality tea every year, of which 15% are plants more than 300 years old. These tea trees are both ecological barriers, and their tea amino acid content reaches 6.2%, 1.8 percentage points higher than ordinary tea trees.
When building a characteristic courtyard in Simao, it is recommended to adopt a three-layer vertical greening of "trees + shrubs + herbs". In the rainy season, pay attention to the setting of drainage ditches and maintain a 30cm planting soil layer. 6-8 During strong monthly sunshine periods, you can build a sun protection net with a 50% shading rate for shade-loving plants such as rhododendrons. Regularly check the soil pH and adjust the pH with ferrous sulfate so that each plant can show its best condition.