Evergreen Plants That Survive the Winter Frost
In the season of severe cold, all things wither, yet the courtyard landscape can still burst with vitality. Choosing evergreen plants with strong cold resistance can not only break the dreariness of winter but also reduce the pressure of maintenance. These green warriors maintain their lush green posture in the cold through unique survival mechanisms, adding a vibrant interest to the winter gardens.
Selection and Care Tips for Cold-Resistant Plants
Podocarpus Macrophylla: A Model of Cold-Tolerant Coniferous Plants
Podocarpus macrophylla, a relic species from the Quaternary glaciation, has cold-resistant genes that can withstand temperatures as low as -25°C. The unique scale-like leaf structure of the Taxaceae family effectively locks in moisture, and the deep brown bark forms a natural insulating layer. It is recommended to plant it in well-drained slightly acidic soil and apply decomposed organic fertilizer in spring and autumn to promote growth.
Snowdrop: A Miracle of Blooming in the Snowfield
This Amaryllidaceae plant demonstrates its tenacious vitality in the cold high mountains of the north, capable of blooming yellow and white flowers while the snow has yet to melt. The bulbs are deeply buried in the frozen soil layer to overwinter and quickly germinate through the thawing water in early spring. When planting in the ground, it is necessary to keep the soil cover above 5 cm, and for potted plants, sandy culture soil should be used to ensure good drainage.
Holly: An Optimal Choice for Vertical Greening
Both Ilex latifolia and Ilex coccinea are excellent cold-resistant varieties, with the leathery leaf surface's waxy layer preventing cell freezing. Shaping pruning can be carried out throughout the year, and it is recommended to maintain a ventilation structure with the main stem. In the north, it is suitable to choose a position with a sunny and windless exposure, and in winter, wrap the trunk with straw rope to prevent frost cracks.
Cold Chrysanthemum: Flowers in Full Bloom During the Frost Descending Season
Evergreen Plants That Survive the Winter Frost
晚秋菊 and 寒小菊 varieties can maintain blooming in an environment as low as -10°C. The key is to complete the shaping pruning before winter and retain strong buds. For ground planting, add 10 cm of soil before frost, and for potted plants, it is recommended to use ceramic pots to enhance root cold resistance, combined with phosphorus and potassium fertilizers to strengthen cell wall resilience.
Plum Blossom: The Main Force of the Snowy Landscape
Varieties such as Cinnabar plum and Jade Butterfly plum activate cold-resistant genes through vernalization, with lignified branches able to tolerate temperatures as low as -15°C. For overwintering in pots, it is necessary to control the watering frequency and keep the soil slightly dry. For ground planting, apply fertilizer for germination in early spring and promptly cut back after flowering to promote the development of new branches.
These cold-resistant plants adapt to low temperatures through different mechanisms, and a reasonable mix can create a courtyard space with scenery all year round. Selection should be combined with local records of extreme low temperatures, along with windbreak measures and winter care techniques, to ensure that green plants not only survive the winter safely but also display the best ornamental effect.