Euphorbia trigona pruning method
Euphorbia trigona, as a fine ornamental plant among succulents, is favored by horticulture enthusiasts for its unique棱-shaped stems and purple-brown斑纹 patterns. Scientific pruning not only maintains an attractive plant shape but also promotes healthy growth. This article will systematically explain the entire pruning process of Euphorbia trigona, from tool preparation to postoperative care.
Core steps of Euphorbia trigona pruning
Main stem shortening shaping method
When the main stem exceeds 80cm in height, a 45-degree oblique cut method should be used to remove the top 1/3. Cut 0.5cm above the stem node and disinfect the cut with 75% alcohol. It is recommended to operate during the spring sprouting period. After shortening, applying wood ash can accelerate the formation of callus and promote the sprouting of 3-5 new lateral branches.
Root system optimization technique
When repotting, retain 40% of the original soil ball and focus on pruning brown lignified old roots. Use a curved-forceps to spirally strip compacted soil, retaining white absorbing roots with a diameter ≤2mm. After pruning, it is recommended to soak in a carbendazim solution (1:1000) for 20 minutes, then air the roots for 48 hours before potting.
Key points of Euphorbia trigona maintenance
Postoperative environmental control
After pruning, maintain a constant temperature of 25-28°C and keep the air humidity below 50%. Use the immersion method to water, keeping the substrate moisture content at 20%-30%. Avoid direct sunlight for the first two weeks and use a shading net to filter 50% of the light intensity.
Nutrition supplement plan
After new buds sprout, apply a slow-release fertilizer with an NPK ratio of 12-12-12 at a rate of 15g per square meter of substrate. Combine with foliar spraying of seaweed extract (1:1500) and supplement calcium and magnesium elements every 10 days to prevent stem rot. Maintaining a day-night temperature difference of 8-10°C during the growing period can enhance stress resistance.
Through the combination of scientific pruning and meticulous care, Euphorbia trigona can achieve an annual growth of 15-20cm and maintain a compact plant shape. It is recommended to establish a pruning log to record the growth response after each operation, gradually mastering the rhythm of personalized care.