Is the Beauty Plum Tree Cold-Resistant?
As temperatures gradually drop, many gardening enthusiasts start to worry about the overwintering of their courtyard plants. The Beauty Plum, known for its ornamental value and resilience, how does its cold resistance hold up? What specific maintenance measures are needed at different growth stages? Today, we will reveal the answers through field observation data.
Where Does the Cold Resistance Limit of the Beauty Plum Lie?
Cold Resistance of Mature Plants
Tracking records from several nurseries in the north show that Beauty Plum trees planted in the ground for over 5 years can tolerate extreme low temperatures of -25°C. Their branches form a lignified protective layer, and the cell sap concentration naturally increases with the temperature drop, which生理特性 gives them more frost resistance than ordinary plum varieties.
Special Care for Seedlings
For newly planted or trees less than 3 years old, it is recommended to take triple protection: wrap the main trunk with straw ropes in early November, heap soil 30 cm away from the roots, and cover the canopy with light-transmitting non-woven fabric. Tests in the Hebei region show that these measures can increase the overwintering survival rate of seedlings to 98%.
Three Key Operations for Overwintering Maintenance
Scientific Irrigation to Prevent Frost
7-10 days before the soil freezes (daily average temperature around 5°C), dig a circular trench along the edge of the tree canopy projection and water each plant with 80-100 liters of warm water. Data from the Beijing Botanical Garden shows that this can form a stable insulating layer around the roots, effectively preventing frost drought.
Light Management Techniques
Although the Beauty Plum can tolerate shade, a full sun environment in winter is more beneficial. It is recommended to remove obstructions within a 2-meter radius and trim the southwest branches appropriately to ensure at least 6 hours of direct sunlight daily. A case in Shenyang shows that sufficient light can increase the number of spring flowers by 40%.
New Formula for Tree Trunk Whitewashing
Use an eco-friendly formula of 10kg hydrated lime + 1kg sulfur powder + 0.5kg salt + 0.2kg animal oil + 30kg water. Brush from the base of the stem to the branching point of the main trunk, which can not only prevent frost cracks but also eliminate overwintering eggs. Applications in the绿化带 of Changchun City have proven that this formula is 92% effective in pest control.
Through scientifically verified maintenance methods, the Beauty Plum can not only survive the winter safely but also store energy for a magnificent bloom in spring. Mastering the timing of irrigation, light adjustment, and protective treatments, even in areas as far north as 45 degrees latitude, one can enjoy the unique charm of this ‘Ice and Snow Beauty’.