When to Repot Jasmine
Jasmine, known for its elegant and fragrant evergreen shrub, requires regular repotting to maintain vigorous growth. This article systematically analyzes the best timing and scientific operational process for repotting, combined with seasonal maintenance differences, to help you master practical techniques for keeping jasmine roots healthy and doubling the bloom amount.
Ⅰ. Choosing the Best Time for Jasmine Repotting
1. Spring Golden Repotting Period
When the temperature stabilizes at above 15°C from March to April, jasmine is in the early stage of germination, and repotting at this time causes minimal damage. The nutrients accumulated during the dormant period can quickly repair the roots, and with the development of new roots, the plant can enter the growth爆发 period ahead of schedule.
2. Key Points for Repotting in Special Seasons
Repotting in summer requires retaining 1/3 of the protective soil to avoid root damage from high temperatures; in autumn, it should be completed 40 days before the cold wave; and in winter, it is necessary to operate at a constant indoor temperature of over 18°C, using the pot-in-pot method to keep warm.
Ⅱ. The Complete Process of Jasmine Repotting
1. Pre-Repotting Preparation Stage
Stop fertilizing and reduce watering 7 days in advance, choose breathable containers like red clay or purple sand pots, with a diameter 5-8cm larger than the original pot. Prepare a slightly acidic substrate composed of decomposed leaf soil + coarse river sand + vermiculite (5:3:2).
2. Core Technology for Root Pruning
Use a three-level pruning method: first, cut off the browned old roots, then trim the entwined roots, and finally shorten the overlong main roots. Retain the white new roots, soak in carbendazim, and then dip in root-promoting powder to dry.
3. Scientific Potting Techniques
Place a 3cm layer of ceramsite at the bottom of the pot, fill the substrate to 1/3, position the plant using the root-lifting method, maintaining a 2cm distance between the original soil surface and the pot rim. Fill the soil while shaking the pot to make the roots adhere.
4. Key Maintenance After Repotting
Water thoroughly after repotting and keep the plant shaded for 7 days, then apply diluted seaweed fertilizer after the new leaves have unfolded. Pay attention to the leaf surface condition, and if wilting occurs, cover with a plastic bag to maintain moisture.
Ⅲ. Maintaining Repotting Results and Precautions
Jasmine that has been successfully repotted should sprout new buds within 45 days; if yellow leaves appear, check for waterlogging. It is recommended to combine annual spring soil turning with补充 bone meal or other long-acting phosphorus fertilizers. Through scientific repotting, the lifespan of jasmine can be extended by 3-5 years, with an increase of 1-2 blooming times per year.