Core Viewpoint - The flowering period of early silver osmanthus in Shanghai has reached a record late date this year, attributed to prolonged high temperatures affecting the plant's blooming conditions [1][3]. Group 1: Flowering Conditions - Early silver osmanthus, a common variety in the Yangtze River basin, typically blooms early with a fragrant yellow-white flower, serving as a seasonal indicator for Shanghai's osmanthus season [1]. - The flowering delay this year is linked to high temperatures that prevented the plant from receiving the necessary low temperatures to trigger blooming, referred to as "start low temperature" [1][2]. - The blooming process requires a specific sequence of temperature changes, including a drop below 21°C to initiate flower bud development, followed by a warm period for bud expansion [2]. Group 2: Historical Trends - Recent years have seen a trend of increasingly late blooming dates for early silver osmanthus, with 2023 being the only year in the past five with a relatively normal flowering period [3]. - If the pattern of prolonged high temperatures continues, the association between osmanthus blooming and the Mid-Autumn Festival may diminish, leading to later blooming times [3]. Group 3: Impact on Local Enjoyment - Due to the current climatic conditions, the early silver osmanthus is expected to have fewer flowers this year, resulting in a less fragrant experience for enthusiasts [3]. - Other varieties of osmanthus are less affected by the unusual weather, suggesting that the overall osmanthus season may still offer enjoyable experiences later on [3][5].