Can I transplant Parthenocissus in winter?
In courtyard greening, creeper has become the first choice for vertical greening due to its strong climbing ability. As the temperature drops sharply, many horticulturists are concerned about whether this vine can survive transplanting in a low temperature environment. This article will explain in detail the key techniques and cold resistance characteristics of winter transplanting. Winter transplanting feasibility analysis Transplanting time window selection Although spring and autumn (March-April/October-November) are the best transplanting period, transplanting operations can still be carried out in winter (December-February). At this time, the plant is in a dormant state, and the recovery period of root damage is prolonged, and special protective measures are needed to ensure survival rate. Key operating technical points Keep complete soil balls with a diameter of more than 30cm and use double layers of straw rope to wrap them for insulation. Water plant antifreeze (dilution ratio 1:200) 3 days before transplanting, and retain the main root length of more than 40cm during excavation. It is suggested to choose continuous sunny days to avoid soil freezing affecting root integrity. Extreme cold tolerance showed temperature tolerance threshold Adult plants could tolerate extreme temperatures from-20℃ to 40℃, and seedlings were slightly less cold tolerant (-10℃). In northeast China (Harbin, etc.), it is necessary to plant in sunny and sheltered positions; in the south of Yangtze River Basin, it can overwinter in the open air without protection. When the forecast temperature is lower than-15℃, the three-layer protection method is adopted: 30cm of soil at the base → winding non-woven fabric → building wind barriers. Remove the protection in time after thawing in spring to prevent the roots from being sweltering and rotting. Full-cycle maintenance and management soil improvement plan When planting, garden soil and decomposed sheep manure are mixed at a ratio of 4:1, and 100g of bone meal is added to each hole. Acidic soil (PH<6.0) needs to be adjusted by adding lime powder (1kg/m³) to ensure an environment for root development. Pruning and traction techniques After transplanting, retain 3-5 main stems and cut off thin and weak branches (diameter <0.5cm). Use grid brackets to shape, and tie new branches in an "S" shape to promote even wall coverage. Water and fertilizer control standards Keep the soil slightly moist (water content 15%-20%) in winter and irrigate it once every month at noon on sunny days. After spring, apply 50g of nitrogen, phosphorus and potassium compound fertilizer (15-15-15) per plant, and spray it with alginic acid foliar fertilizer.
By scientifically mastering the transplanting timing and protective techniques, the Parthenocissus can completely complete the transplanting in winter. This kind of vine, which has both ornamental and ecological functions, can continue to put on an ecological coat on the building as long as root protection is carried out during the low temperature period and spring recovery management is carried out.