这些植物成熟很快，产生种子，然后死亡。

The plants mature quickly, produce seeds, and then die.

youdao

这有助于新植物成熟并且开出繁茂的花朵。

This helps to ripen new growth and makes it flower profusely.

《柯林斯英汉双解大词典》

在种植小树苗的时候不考虑植物成熟时的特点。

These huge plants were planted when they were tiny little cute sprouts without any consideration given to the characteristics of the mature plant.

youdao

The laurels and the myrtles that he addresses here are, of course, the traditional plants classically associated with great poets; but for Milton in this passage, importantly these plants simply aren't ripe yet.

诗中提到的月桂树和常青藤，传统上常常与伟大诗人相联系;,但在弥尔顿的这首诗，重要的是这些植物尚未成熟。

耶鲁公开课 - 弥尔顿课程节选