How long does the flowering period of osmanthus bloom?
As one of the top ten famous traditional flowers in China, osmanthus is deeply loved by people for its rich and fragrant aroma. Every golden autumn season, the grand scene of laurels blooming can always arouse infinite reverie. But do you really understand the blooming rules of this autumn fragrance? This article will take you to deeply analyze the mystery of the flowering period of osmanthus flowers. 1. Analysis of the duration of flowering period of osmanthus osmanthus flowers. The flowering characteristics of conventional varieties Most osmanthus varieties bloom from September to October, and the best viewing period is about 20-30 days. Traditional varieties such as Jingui and Yingui are greatly affected by climate. The flowering period usually lasts for about 3 weeks, and may be shortened to 15 days in case of continuous rainy weather. Special flowering rules of Sijigui, as a special variety, Sijigui can achieve periodic opening at 15-28℃. Through scientific maintenance, it can bloom every 2-3 months from March, and the cumulative annual flowering period can reach 180 days. Its single flowering period is about 10-15 days, and its opening time is extended to 20 days in low temperature environments in winter. Second, three key factors affect the light control strategy of osmanthus flowering period. During the flower bud differentiation period, light must be scattered for 6 hours a day to promote anthocyanin synthesis. During the full flowering period, it should be moved to a semi-cloudy environment. Direct exposure to strong light will cause petals to burn and shorten the flowering period by 30%-40%. It is recommended to use a sunscreen net with a shading rate of 50% to regulate light intensity. Nutrient management techniques Applying phosphorus and potassium fertilizer (N-P-K=3-12-6) 15 days before bud emergence, combined with 0.2% potassium dihydrogen phosphate foliar fertilizer, can extend the flowering period by 5-7 days. Stop applying fertilizer during the peak flowering period to avoid excessive nutrient growth leading to flower drop, and timely supplement organic fertilizer to restore tree vitality after flowers fade. Water control key points: Maintain soil moisture at 40%-60% during flowering and use the "dry and wet" method for irrigation. Excessive wetting can easily cause hypoxia in the roots, causing flowers to fall prematurely. It is recommended to use a soil hygrometer to monitor and irrigate when 2cm of topsoil is dry, and pour it thoroughly until the bottom of the basin seeps water every time.
By accurately controlling environmental factors and cooperating with variety selection, the scientific extension of the flowering period of osmanthus can be fully achieved. Whether it is the rich aroma of traditional autumn osmanthus or the regular characteristics of the four seasons osmanthus, reasonable maintenance can make this autumn gift bloom longer. With these maintenance tips, you can also create your own fragrant courtyard.