Can Osmanthus Be Fertilized During Its Blooming Period?
With the sweet scent of osmanthus in the golden autumn of October, as one of the top ten famous flowers in Chinese tradition, the management of osmanthus blooming period directly affects the quality of flowering. Many flower enthusiasts wonder: Should osmanthus be fertilized during its peak blooming period? How to water scientifically to extend the viewing period? This article will systematically analyze the key points of maintenance during the blooming period, helping you cultivate a tree full of golden cores.
Complete Guide to Fertilizing Osmanthus During Blooming Period
1.1 Analysis of the Necessity of Fertilizing
Osmanthus consumes a large amount of nutrients during the blooming period, akin to 'physical labor' in the plant world. Each small flower needs phosphorus, potassium, and other elements to bloom, and timely replenishment of nutrients can extend the blooming period of a single flower by 3-5 days. However, it is important to note the differences in fertilizing strategies before and after flowering.
1.2 Scientific Fertilizing Schedule
Apply high-phosphorus fertilizer during the bud differentiation period (August-September) to promote the formation of flower buds, recommended to use potassium dihydrogen phosphate (diluted 1000 times); switch to a balanced liquid fertilizer at the beginning of the blooming period (early October); stop fertilizing during the peak blooming period; and apply compound fertilizer after the flowers fade to restore tree vigor.
1.3 Taboos in Fertilizing Operations
Avoid fertilizing during the high-temperature noon, choosing early morning or dusk instead. Maintain a 20cm safe distance from the rootstock, and water thoroughly after fertilizing. Never use uncomposted organic fertilizer, as it can easily cause root burn.
II. Fine Management of Watering During the Blooming Period
2.1 Soil Moisture Control
Adopt the 'dry-wet' principle, water only when the top 3cm of soil turns white. Use the bamboo stake insertion method to test: if no soil clings to the stake when pulled out, it's time to water. Keep the soil moisture between 40-60% for optimal conditions, as excessive moisture can cause the flower drop rate to reach over 30%.
2.2 Adjustment of Environmental Humidity
Keep the air humidity during the blooming period at 60-70%, which can be achieved by spraying the leaves in the morning and evening. It is recommended to use a mist sprayer,喷洒时保持距离植株1 meter away to avoid water droplets accumulating on the flower cores. In rainy weather, set up a rain shelter and remove standing water in a timely manner.
2.3 Response to Special Weather Conditions
In case of continuous rainy weather, dig drainage ditches and elevate potted plants by 10cm to prevent flooding. Use drip irrigation to supplement water during dry weather, and combine with organic mulch such as pine bark to retain moisture. Reinforce branches in advance during typhoon season.
Through scientific fertilizing and precise watering, the blooming period of osmanthus can be extended by 10-15 days. It is recommended to establish a maintenance log, recording the plant's response after each operation. Master the principle of 'frequent light fertilizing and alternating dry-wet conditions', and golden and silver osmanthus will surely bloom fragrantly year after year.