Lizabeth, her brother Joey, and there friends are throwing stones at Miss Lottie's marigolds. This is very childish and Lizabeth knows it's wrong but does it anyways because she feels emotion for the marigolds.
Lizabeth hears her parents arguing about how her father can't get a job. This makes her feel sad and angry, and she wants to get out her rage.
Lizabeth destroys Miss Lotties marigolds then realizes what she had done was wrong and feels very bad about destroying them. She feels she is no longer a child, and finally understands the importance of the marigolds to Miss Lottie, which makes her mature.