Believe it or not, this sentence is simple.
Yes, it is quite long, but it has one subject (daylilies) and one verb (are). As a result there is one independent clause.
This single independent clause has some adverb and adjective phrases, but the sentence is still a simple one.
Answer:
To identify the theme, be sure that you've first identified the story's plot, the way the story uses characterization, and the primary conflict in the story.
Explanation: