When to Repot plum blossom
As the leading traditional famous flower in China, the repotting operation of plum blossom directly affects the plant's growth status and flowering quality. Mastering the correct repotting timing and maintenance techniques can make old trunks sprout new buds and withered branches bloom. This article analyzes the whole process of plum blossom repotting from three core dimensions to help you cultivate high-quality plum blossom trunks.
Best Timing for plum blossom Repotting
Golden Spring Repotting Period
When the average daily temperature stabilizes at 12℃ or above in March to April, plum blossom roots enter an active period. Repotting at this time can minimize stress reactions. In the northern region, it can be postponed to around Qingming ( Tomb Sweeping Day), while in the Jiangnan region, it is advisable to complete the operation during the Jingzhe (Waking of Insects) solar term. Choose to operate on consecutive cloudy days, or if it's sunny, complete the repotting operation between 5-7 am.
Key Points for Repotting in Special Seasons
In autumn, retain 80% of the protective soil around the roots, and strictly avoid repotting in winter. In extreme summer conditions, repotting should be done using the immersion method to water, and a shading net should be used to reduce light intensity by 60%.
Scientific Watering Scheme After plum blossom Repotting
Standard for Initial Root Watering
Complete the first thorough watering within 2 hours after repotting, using water at around 25℃, and water slowly around the pot edge until water comes out of the bottom hole. Adding 0.02% indolebutyric acid rooting agent can increase the speed of capillary root germination by 40%.
Subsequent Water Management
After the first thorough watering, enter the water control period and water again when the top 3cm of soil turns white. Use the bamboo stake test method: insert a bamboo stake into the potting soil for 15 minutes and then pull it out; if there are no obvious wet traces, water the plant.
Five Steps to Complete Professional-level Repotting
When to Repot plum blossom
Root Pre-treatment Technique
After removing from the pot, use the 'three-cut method' to prune the roots: trim dense fibrous roots evenly, cut old woody roots diagonally, and make annular cuts on entangled roots. Soak in a 1000-fold potassium permanganate solution for 20 minutes, then air-dry the roots until the cuts form a film before repotting.
Scientific Substrate Mixing Ratio
Classic formula: decomposed leaf soil (40%) + red jade soil (30%) + pine ash (20%) + bone meal (10%). Maintain the pH value between 5.5-6.5, and add 2g of sulfur powder per liter of substrate to maintain an acidic environment.
Techniques for Stabilizing the Trunk After Repotting
Use the 'three-layer soil filling method': place 3cm of ceramsite at the bottom, a mixture of base fertilizer and soil in the middle, and pure substrate on top. When planting, keep the original soil mark 2cm above the pot edge and use the pulling method to naturally spread the roots.
Key Maintenance Points After Repotting
During the seedling establishment period, maintain an ambient temperature of 18-25℃, and use smart grow lights to maintain 2000lux of light for 14 hours/day. Starting from the 15th day, apply seaweed extract (1500-fold solution), and spray the leaves every 10 days until the new shoots become woody.
By precisely controlling the repotting timing, scientifically implementing root care, and rationally managing water and fertilizer, even century-old plum blossom trunks can rejuvenate. Remember the maintenance motto 'Trim roots at Chunfen (Spring Equinox), stabilize the pot at Qingming, and nurture the trunk at Guyu (Grain Rain)', and you will definitely cultivate high-quality plum blossom that can withstand frost and snow.