She hates peach blossoms the most.
Someone once held a pink peach in his hand, placed it next to her cheek, and said frivolously:
"Only this flower can match your appearance."
So people closely connected her with this innocent flower.
They originally called her "Madam" vaguely, but after saying this, they also added the word "peach blossom".
Mrs. Peach Blossom.
Conception: