Pruning Time and Methods for Milan
As an aromatic representative among evergreen shrubs, the pruning and maintenance of Milan flowers directly affect the flowering quality of the following year. Mastering scientific pruning timing and methods not only shapes a beautiful plant form but also effectively prevents diseases and pests, allowing the plant to accumulate nutrients and survive the winter safely.
Criteria for Choosing Pruning Time
Seasonal Advantage: The Golden Period for Winter Pruning
November is considered the best time for pruning Milan, with dual advantages: when the temperature drops below 15°C, the activity of fungal spores decreases, reducing the risk of infection in pruning wounds by 60%; at the same time, the plant enters a semi-dormant state, slowing down its metabolic rate, and the loss of nutrients after pruning can be controlled within 12%.
Dormancy Characteristics: Key Stage for Shaping
During this stage, the growth points of Milan are stagnant, and the pruning cuts on branches will not quickly sprout new buds, which is beneficial for maintaining the pruning shape. Experimental data shows that the duration of the shape retention after pruning in the dormant period is 3.2 times longer than that in the growing period.
Professional Pruning Guide
Handling Weak and Diseased Branches: Three Steps for Precise Pruning
① Use a 45° oblique cut method, cutting 1cm above the healthy part of the diseased branch; ② Alternate the use of 75% alcohol and flame to disinfect the tools; ③ Apply healing ointment to cuts with a diameter > 0.5cm to effectively prevent 89% of bacterial infections.
Shaping Pruning: The Combination of Art and Science
For a spherical shape, follow the 'remove three, keep seven' principle: cut off the branches that exceed 1/3 of the overall outline and keep 70% of the main branches. For an umbrella shape, implement the 'open skylight' technique, leaving one main branch at intervals of 10-15cm to ensure a light transmission rate of over 70%.
After pruning, combine a slow-release fertilizer with an NPK ratio of 3:1:2, maintain an ambient temperature of 18-25°C, which can increase the germination rate of new buds by 40%. Regularly observe the healing of the cuts, and if abnormal exudates are found, immediately use methyl thiophanate for treatment.