Attention Points for Repotting Jasmine in Winter
Jasmine, as a typical southern plant, repotting in winter is an important step to maintain the health of the plant. Scientific and reasonable transplantation operations can not only promote root development but also store energy for flowering the following year. This article will analyze the correct method of repotting in winter from four key dimensions to help gardening enthusiasts master the tips for caring for jasmine in winter.
One: Accurate Timing for Repotting
1.1 Best Time Window
It is recommended to perform the operation 15 days before the beginning of spring (around mid-January to early February), when the temperature is stable between 5-10℃, and the jasmine is in a deep dormant state with slow sap flow, allowing for quicker recovery from root damage caused by repotting.
1.2 Weather Condition Selection
Choose to operate on consecutive sunny mornings to avoid repotting in rainy days that could lead to wound infection. If there is a sudden cold spell in spring, it is necessary to postpone the operation until temperatures rise again.
Two: Systematic Plant Pruning
2.1 Branch Shaping Standards
Retain 3-4 primary branches on the main stem, with each branch keeping 2-3 buds. Use a 45-degree oblique cut method for the cuts, ensuring that the cut edge is more than 0.5cm away from the bud to avoid spring bud obstruction.
2.2 Root Treatment Process
Use disinfected scissors to remove rotting and diseased roots, keep the healthy main roots to a length of 15cm, and the lateral roots to 8-10cm. For thick roots with a diameter greater than 2mm, perform a skin-breaking treatment to stimulate the growth of new roots.
Three: Scientific Soil Mixing Techniques
3.1 Substrate Golden Ratio
It is recommended to use a mixed matrix of decomposed leaf soil: perlite: vermiculite = 5:3:2, with 5g of bone meal added per liter of soil as a long-acting phosphorus fertilizer. Place a 3cm thick layer of ceramic stones at the bottom of the pot to prevent waterlogging and root rot.
3.2 Nutrient Supplement Plan
Bury fermented sheep manure (5% of the soil volume) in the middle layer of the pot soil and cover the surface with pine bark to keep the moisture. Avoid using uncomposted organic fertilizers to prevent root burning.
Four: Detailed Care Management
4.1 Temperature and Humidity Control
After transplanting, maintain an ambient temperature of 10-15℃, and keep the air humidity between 60-70%. When using the bagging method to keep moisture, it is necessary to ventilate for 2 hours daily to prevent mold growth.
4.2 Light, Water, and Fertilizer Management
Ensure at least 4 hours of direct sunlight daily, use the immersion method to water, and keep the matrix slightly moist. Do not apply any fertilizer within 30 days after repotting, and start top-dressing only after new buds have sprouted.
By following the above systematic operations, the survival rate of repotted jasmine can reach 95% or more. The key is to grasp the advantage of transplanting during the dormant period, combined with precise pruning and scientific soil mixing, to help the plant smoothly pass through the seedling stage. It is recommended to change the potting soil every 2 years, combined with regular pruning to maintain a beautiful plant shape, allowing jasmine to bloom fragrant flowers year after year.