"When children grow up, they should say goodbye to their mothers and put home first everywhere." In this sentence, "child" refers to the seeds of plants, and "growth" refers to the maturity of seeds. This sentence comes from "Plant Mother has an Idea".
This poem introduces us to the seed spreading methods of three common plants, dandelion, xanthium sibiricum and pea, with vivid metaphors and anthropomorphic techniques, and tells us that nature is really wonderful, and we should learn to observe it carefully.
The general idea of this paragraph is:
The first paragraph (section 1): How do vegetable children "travel"?
The second paragraph (section 2-4): Plant mother has her own "coup".
The third paragraph (section 5): Careful observation can gain knowledge.