What flowers are suitable for Yaan
Known as the 'City of Rain', Yaan, with its得天独厚的 subtropical humid climate, has become a natural greenhouse for flower growth. The warm environment with an average annual temperature of 15-18℃, combined with abundant rainfall, provides ideal conditions for plant growth. The unique geographical environment creates differences between the north and south: the north is often foggy with high humidity, while the south has abundant sunshine and is warmer, making Yaan a golden area for flower cultivation.
Yaan Climate and Flower Adaptability
Impact of Climate Differences Between North and South
The Qingyi River divides different planting areas: the north with an average annual temperature of 15℃ and annual rainfall of 1750mm is suitable for shade-loving plants such as azaleas and camellias; the warm south with 18℃ and annual rainfall of 750mm is more suitable for planting sun-loving flowers such as bougainvillea and ceiba. This vertical climate feature allows Yaan to achieve a planting pattern of 'one city with multiple gardens'.
Key Points for Maintenance Throughout the Seasons
In spring, it is necessary to protect against 'late spring coldness', with roses and peonies needing to be covered with insulation film; in summer, during high temperatures and heavy rain, pothos and bamboo should be prevented from rotting due to waterlogging; in autumn, the large temperature difference between day and night is beneficial for chrysanthemum coloring; in winter, with rare frosts and snow, wintersweet can overwinter outdoors. Mastering these patterns can make flowers grow better.
Recommended Planting Varieties
Garden ornamental flowers
Hibiscus and crape myrtle are the preferred choices for flower hedges, with flowering periods lasting over 120 days; trumpet creeper and Boston ivy have significant vertical greening effects; combining Clematis and cosmos can create a flower garden. The city flower, osmanthus, is especially recommended, as it fills the city with fragrance in the golden autumn, providing both ornamental value and material for making floral tea.
Indoor green plant choices
Shade-tolerant large green plants like areca palm and dragon blood tree are suitable for placement in halls; flowering plants like Crinum and Phalaenopsis can adorn window sills; mint and nine-mile fragrant plants have air purification functions. It is recommended to use a combination of potted plants, pairing pothos with Pilea.
Cultural Connotations of City Flower and Tree
Cultural Symbolism of Osmanthus
The city flower, osmanthus, established in 2010, has a thousand-year history of cultivation in Yaan. The unique humid environment of the Rain City extends its blooming period to 45 days, with the 'Three Autumn Osmanthus' landscape becoming a city hallmark. The locally cultivated 'Rain City Golden Osmanthus' variety has 30% more flowers than common varieties.
As the city tree, the yellow sandalwood tree's flat roots effectively prevent soil and water loss. The adult tree canopy can reach 20 meters, providing significant shade in summer. In scenic areas like Bifengxia, century-old trees form a unique ecological corridor, witnessing the city's development history.
From courtyard planting to urban greening, Yaan's flower and tree culture permeates every corner. Choosing suitable varieties combined with scientific maintenance, whether it's a private garden or a balcony view, can create a plant space with the unique characteristics of the Rain City. The city flower and tree are not only ecological symbols but also a vivid continuation of the city's cultural context.