How to Top an Old Jade Tree
Old Jade trees tend to experience leggy growth and loose plant structures after several years of growth. Scientific topping is a key technique for shaping an ideal plant form. Reasonable pruning not only stimulates the growth of lateral buds but also allows for propagation through cuttings. This article will systematically explain the complete operation process of topping a Jade tree, helping gardening enthusiasts master this practical skill.
The Core Four Steps of Jade Tree Topping
Choosing the Best Operation Timing
Conduct the operation in spring or autumn (March-April / September-October) when the temperature is stable at 18-25°C, as the Jade tree is in an active growth phase at this time, and the healing speed of cuts is 2-3 times faster than in winter. Avoid the high-temperature period of summer (>30°C) and the low-temperature period of winter (<10°C), as experimental data shows that the infection rate after topping in summer can reach over 40%.
Professional Tool Preparation Plan
Prepare a sharp pruning shear that has been disinfected with alcohol (blade thickness ≤ 0.3mm), and it is recommended to choose professional tools such as Japanese ARS gardening shears. Gather 75% medical alcohol, wood ash或多菌灵 powder, sterile gauze, and other auxiliary materials, and soak the tools for 30 minutes in advance for disinfection.
Precise Topping Operation Tips
Cut the top of the leggy branches at a 45° angle, leaving 3-5 healthy buds on the main stem. The cut should be 0.5-1cm away from the nearest bud, as being too close can damage the bud and being too far can affect the appearance. Immediately after pruning, apply wood ash with a cotton swab to the wound to form a 0.2mm protective layer.
Key Points for Post-Operation Care
Avoid watering within 7 days after topping and place it in a well-ventilated area with scattered light. After 10 days, apply a diluted 1000-fold multi-purpose nutrient solution for succulents to promote the germination of lateral buds. Observation data shows that scientific care can increase the germination of lateral buds by 60%. The cut branches can be used for propagation after drying for 3 days.
Through standardized operations, an old Jade tree can form a full crown in 2-3 months, and with subsequent water and light control care, a highly ornamental bonsai shape can be cultivated within half a year. It is recommended to perform a systematic pruning every 2 years, combined with potting changes to achieve continuous healthy growth.