In "Poet The Know-It-All," Poet in his poem mentions petunias in shades of yellow of blue. While blue variations do exist, yellow variations or combinations of yellow and another color do not exist.
In the beginning of "Poet The Know-It All," Poet makes mention of petunias in his poem honoring the blooming of a century flower. However, petunias were unknown in Europe until they were imported from South America in the 16th-17th century. The background of the Smurf cartoon series is the late Middle Ages (circa 14th-15th century), early for the understanding of petunias in Europe.
Near the end of "Poet The Know-It All," Poet cites a condensed version of his poem honoring the blooming of the century flower by mentioning the nasturtium. However, nasturtiums were unknown in Europe until they were imported from Central or South America in the 16th-17th century. The background of the Smurf cartoon series is the late Middle Ages (circa 14th-15th century), early for the understanding of nasturtiums in Europe.