2 sentences for 开花 (kāi​huā — bloom)

1. 木兰在早春时节开花。

   mù​lán zài zǎo chūn shí​jié kāi​huā.

   Magnolia blooms in early spring.

   Source: Dong Chinese Dictionary

2. 春天到了，花园里的玫瑰都开花了。

   chūn​tiān dào le, huā​yuán lǐ de méi​guī dōu kāi​huā le.

   Spring has arrived, and the roses in the garden are all in bloom.

   Source: Dong Chinese Dictionary