Respuesta :
Answer: D: perennial flowers called day lilies
Explanation: The passage talks all about day lilies and only focuses more on the blooming season of day lilies in the end of the passage.
The main idea of this passage is D: perennial flowers called day lilies.
The main idea of a passage serves as the points that the author want the audience to understand, it serves as the central idea.
From the passage ,we can see how how lilies is been focused on the blooming season of day.
Therefore, option D is correct because main idea of this passage talked about perennial flowers called day lilies.
Learn more about main idea of a passage at:
https://brainly.com/question/12555695