What flowers are suitable for Harbin
In the ice city of the north, which is draped in silver, plants face a severe cold test that lasts for five months. The unique climate with an average annual temperature of 3.6°C has created a special horticultural culture in Harbin. The flowers, trees, and plants in this city not only carry the vitality of nature but also embody the wisdom of the people of the ice city living together with severe cold.
Survival rules of plants in cold climate
Seasonal temperature fluctuations
The extreme environment with day and night temperature differences of up to 20°C selects plant populations with special stress-resistant genes. The winter with a ground freezing depth of up to 2 meters requires plant roots to have super cold resistance, which explains why elm trees can take root here for a hundred years.
Special rhythm of light and precipitation
The abundant sunlight with 2641 hours of annual sunshine, combined with 400 millimeters of precipitation concentrated in June to August, creates a landscape characterized by brilliant summer flowers and strong winter branches. This climatic feature has成就ed the super long flowering period of lilacs from May to July.
Plant preference list for ice and snow cities
Cold-resistant梯队 of ground-planted plants
Shrubs such as purple syringa and pearl梅花 can tolerate -35°C low temperature, and the suberin layer in their stem cortex acts as a natural antifreeze. Tree species such as ginkgo and elm accumulate high concentrations of soluble sugars in autumn to achieve cell freezing prevention, forming a unique golden autumn scene.
Environmental regulation of potted plants
The dry air caused by indoor heating requires the addition of humidity measures. When caring for camellias in a heated room, it is necessary to maintain 60% air humidity. It is recommended to choose red pottery pots to enhance breathability, combined with a substrate with 30% perlite to prevent root rot.
Plant code of city symbol
Ecological adaptability of lilacs
34 varieties of lilacs have taken root in Harbin, among which the Martin's lilac can reach a height of 8 meters. The flower bud differentiation requires experiencing -5°C low temperature vernalization, which coincides with the local climatic rhythm. The lilac tunnel in the central street of the old town has become a must-see landscape in spring.
Inheritance of vitality of elm trees
The wind-resistant elm trees have unique spiral thickening in their xylem vessels. The ancient elms in Daoli District, which are over 80 years old, still maintain an annual growth rate of 15 centimeters, and the depth of longitudinal bark cracks can reach 3 centimeters, forming a unique texture of vicissitudes.
From courtyard potted plants to urban forests, the plant choices in Harbin reflect the perfect balance between biological adaptation and aesthetic appreciation of humanities. When the lilacs bloom under the dome of St. Sophia Cathedral in May, and when the new buds of elms decorate the crystal of the Ice and Snow World, these plants have gone beyond the function of greening and become the cultural logo of the city spirit. Mastering the laws of climatic adaptability of plants, every citizen can create their own garden of the north country on the windowsill.