Although it does not say where the story takes place, there are areas in the country where wild yarrow grows. With students, engage in an inquiry about yarrow — generate questions based on what they are interested in knowing about wild yarrow. Research some of these questions as a class or have students choose specific questions and research the answers individually. One of the follow-up activities could be mapping the regions where wild yarrow grows to see if it may be growing in your area. If it does, you may choose to have students look for it in the wilderness to draw or photograph it.