Which idiom is not a direct description of the weather, downpour or spring blossoms?

Spring blossoms are not idioms that directly describe the weather.

Spring has come and flowers are in full bloom.

[Pronunciation] [ch ū n nu m: n hu ā k ā i]

[Explanation] In spring, the climate is warm, flowers are in full bloom and the scenery is beautiful. Metaphor is a great opportunity for sightseeing and viewing.

[Source] Zhu Ming Guozhen's "Zhuang Yong's Sketch in the South": "Spring blossoms; Have a banquet with the cabinet Confucianism. "

A year's plan lies in spring, and this season is a good time to study hard.