Why use cardamom as a metaphor for a girl?

Cardamom is a kind of plant, about ten feet high, which blooms in early summer and bears fruits and seeds in autumn. The bean flower is very full when it is not in full bloom, so it is commonly known as "flower with fetus", so it has become a symbol of girls.

The word cardamom is a classic of "One of Two Farewell Poems" written by Du Mu in the Tang Dynasty: "There are more than 13 pieces of cardamom, and the cardamom ends in early February. The spring breeze is ten miles in Yangzhou Road, and it is better to roll up the bead curtain. "

It means that it is thirteen years old to be graceful and graceful, just like the cardamom flowers in bud on the branches in early February. Seeing all the young beauties in Shili Long Street of Yangzhou City, no one can compare with the beautiful woman who rolls up the bead curtain and pretends to be delicate and charming.