What tree is cold-resistant
When planting landscape trees in the severe cold areas of the north, cold resistance is the primary consideration. Selecting tree species with super cold-resistant characteristics can not only create a garden landscape that is evergreen all year round, but also improve the living environment through plant ecological functions. Four major cold-resistant tree species are selected: Tall and straight winter guardians As a representative of coniferous trees, cedar can withstand low temperatures of-25℃. Its pyramidal tree shape and silver-gray needles are very ornamental. Each adult tree can absorb 10 kilograms of dust per year, making it especially suitable as a road isolation tree species. When planting, you need to choose sandy loam soil with a pH value of 6-8 to ensure more than 6 hours of light per day. Pinus tabulaeformis: Survival expert in deserts This deep-rooted tree can survive at minus 30℃, and its oily needles can effectively prevent water evaporation. The unique umbrella-shaped crown can cover a range of 15-20㎡, and it is recommended to keep the planting spacing more than 8 meters. Pay attention to the need to dig drainage ditches in the rainy season to prevent stagnant water causing root rot. White-bark pine: The miracle of three-color bark The three-color mottled bark of white, green and brown makes it the visual focus of winter gardens. The tree species can still grow in-28℃ and can grow 30-50 centimeters tall every year. Regular pruning of the lower branches can promote the formation of a beautiful umbrella-shaped crown and enhance ornamental value. Yew: The anti-freezing king of the shrub world. This evergreen shrub can survive the extreme cold of-40 ° C, and its dark red berries can continue to hang until March of the following year. Suitable for use as a hedge or modeling plant, and can be trimmed to form a geometric shape. Note that the entire plant is toxic and avoid planting it around children's activity areas. The three principles of scientific conservation are generally "drought-resistant and waterlogging" characteristics. In winter, it is only necessary to irrigate thoroughly once a month, and the soil water content is recommended to be controlled at 18-22%. Applying decomposed organic fertilizer before germination in early spring and covering with 5 cm thick wood chips can effectively maintain the ground temperature. Regularly inspect the base of the tree trunk and inject biopesticides for pest control when found.
Selecting cold-resistant tree species that adapt to the local climate and combining scientific maintenance methods can not only build a hierarchical winter landscape, but also improve the regional microclimate through plant communities. It is recommended to combine different tree species according to soil characteristics, such as mixing deep-rooted cedar with shallow-rooted yew, which can improve land use efficiency and ecological benefits.