How to Repot Murraya exotica Seedlings
As an aromatic ornamental flowering plant, repotting Murraya exotica seedlings is a crucial operation in the cultivation process. Scientific repotting methods can not only improve the survival rate but also lay the foundation for subsequent shaping. This article systematically explains the entire repotting process of Murraya exotica through three core stages: timing selection, operation steps analysis, and post-repotting care essentials.
Complete Guide to Repotting Murraya exotica
Judging the Best Repotting Cycle
After 50 days of seedling growth, transplant when the main root has developed to 5cm and new lateral roots have formed a network-like structure. At this point, the roots have the ability to survive independently but have not yet become overly lignified, minimizing the risk of transplant injury. If the golden period is missed, it is recommended to trim the overgrown old roots before transplanting.
Techniques for Potting and Root Treatment
Use the pot wall tapping method to loosen the soil ball, keeping the plant upright and gently removing it from the pot. Use a bamboo skewer to layer the entwined root mass, focusing on protecting the new white roots with a diameter of ≤2mm. Retaining more than 30% of the original soil can significantly shorten the acclimatization period.
Substrate Formula Optimization
It is recommended to use a sandwich structure: a 3cm layer of ceramic stones at the bottom for drainage, a middle layer of main substrate mixed in the ratio of decomposed leaf soil: akadama soil: vermiculite = 5:3:2, and a top layer covered with 1cm of fermented pine needles. Add 5g of bone meal as a base fertilizer per liter of substrate, and keep the pH value between 6.0-6.5.
Environmental Control After Planting
Immediately after transplanting, water thoroughly with a root-establishing solution (adding 50ppm naphthalene acetic acid). Maintain a scattered light environment (3000-5000lux) for 7-10 days, with air humidity above 70%. Gradually increase light exposure after new leaves have unfolded, and after 20 days, apply 1/4 concentration flowering-type nutrient solution.
Key Points for Post-Repotting Care
Pay special attention to the first 3 weeks after transplanting: keep the substrate slightly moist without waterlogging, maintain a nighttime temperature of ≥18°C, and regularly spray a 800x solution of carbendazim to prevent diseases. When new branches reach 5cm, you can start the first pruning and shaping.
By accurately grasping the timing of repotting and scientific care, the survival rate of Murraya exotica transplants can reach over 95%. Proper root management can promote rapid recovery and growth of the plant, laying the foundation for creating a beautiful plant shape. It is recommended to combine root pruning and substrate replacement every 2 years to continuously maintain plant vitality.