chūn春springnuǎn暖warmhuā花flowerkāi开bloom
Spring is warm, flowers bloom — the season of blossoms; a time of renewal.
Literal meaning
spring (春) — warm (暖) — flower (花) — bloom (开)
Origin
A descriptive set phrase from Tang and Song poetry. Hai Zi's 1989 poem 《面朝大海，春暖花开》 ("Facing the Sea, Spring Warm, Flowers Bloom") brought the phrase back into intense modern circulation — the poem's title-as-phrase is now one of the most recognised lines of late-20th-century Chinese poetry.
Examples
Chūn春nuǎn暖huā花kāi开de的shí时hou候，wǒ我men们qù去kàn看yīng樱huā花。
When spring is warm and the flowers are blooming, let's go see the cherry blossoms.
Děng等dào到chūn春nuǎn暖huā花kāi开，yí一qiè切dōu都huì会hǎo好qǐ起lái来。
When spring comes and the flowers bloom, everything will be better.
Usage & nuances
Frequently metaphorical — "better days are coming," not just literal spring. Romantic / poetic register. Common in greetings, well-wishes, and the conclusion of essays.
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