In the East, thousands of trees bloom at night, and the stars are like rain. What season is this poem about?

Spring is Lantern Festival, that is, the fifteenth day of the first month, Lantern Festival. Because "thousands of trees open in the east wind night, and the stars are like rain." This sentence comes from Xin Qiji's Jade Case Yuan.

Yuanxiao: The fifteenth day of the first lunar month is the Shangyuan Festival and Lantern Festival, and this night is called Yuanxiao or Yuanxiao.

Qing Yu and Yuan Xi.

Xin Qiji? Song dynasty

Thousands of trees are blooming and stars are everywhere in the east night. BMW carved cars are full of incense. Phoenix flute moves, jade pot turns, fish dragon dances all night. Moths, snow, willows, gold thread, laughter and incense are all gone. Looking for him in the crowd, suddenly looking back, the man was there, dimly lit.

The east wind blows the midnight snack, and the lanterns are bright, just like the flowers of thousands of trees. Fireworks falling from the sky are like star rain. The luxurious carriage crossed the fragrant street. The melodious sound of the phoenix flute echoed everywhere, and the moon like a jade pot gradually turned to the west. All night, the fish lanterns and dragon lanterns kept jumping, laughing and making noise. The beauty wears gorgeous ornaments on her head and walks with the crowd with a smile. Only the smell of clothes is still floating in the dark. I looked for her a thousand times in the crowd and suddenly turned around, but I found her inadvertently in the scattered lights.