How to Prune Jasmine in Winter
As an important part of winter flowering plant care, pruning jasmine directly affects the quality of flowering the following year. Mastering the right timing and method not only helps the plant survive the winter safely but also accumulates energy for spring sprouting. This article will provide a comprehensive analysis from tool preparation to operational details, helping you cultivate healthier jasmine plants.
I. Jasmine Winter Pruning Operation Specifications
1. Tool Disinfection Preparation
Wipe pruning shears with 75% alcohol, focusing on the cutting edge area. It is recommended to operate in sunny weather in the morning to avoid low temperatures and humid environments that can cause wound infections.
2. Scientific Pruning Steps
(1) Weak Branch Cleanup: Prioritize cutting off thin and weak branches with a diameter less than 3mm, and withered yellow branches, retaining 1-2 buds at the base of the main branches. (2) Strong Branch Shortening: Retain 1/3 of the original length of robust main branches, using a 45-degree oblique cut to promote healing. (3) Shaping Adjustment: Remove crossing branches, parallel branches, and dense inner branches to maintain ventilation and light penetration in the canopy.
3. Leaf Retention Principle
Each branch should retain at least 2-3 mature leaves, and the total area of the leaves should be 30% of the original leaf amount. The retained leaves can continue to perform photosynthesis and maintain root activity.
II. Regional Pruning Time Management
1. Southern Areas without Heating
The best time is 10-15 days after the beginning of winter (average daily temperature of 5-10℃), when jasmine enters a semi-dormant state, and pruning can effectively reduce nutrient consumption.
2. Northern Areas with Heating
It is recommended to delay pruning until early spring before sprouting (late February to early March). The heating environment can easily stimulate early sprouting, requiring supplementary lighting and temperature control (maintaining 15-18℃).
3. Special Climate Handling
In case of late spring frost, pruning should be paused until the temperature stabilizes above 10℃. Pruned plants can be covered with non-woven fabric to prevent freezing.
III. Supporting Care Points
After pruning, apply phosphorus and potassium fertilizer (diluted 1000 times) every 20 days. Keep the substrate slightly moist, avoiding waterlogging and root rot. During the spring sprouting period, apply decomposed soybean cake water to promote new branch development.
Through scientific pruning and precise timing control, jasmine plants can develop a more reasonable branch structure. Proper nutrient reserves can increase the flowering amount by over 40% the following year, achieving a flourishing and lush ornamental effect.