In the book the bean trees, how does this quote forshadow turtles future?

quote ="Turtle shook her head. “Bean trees,” she said, as plainly as if she had been thinking about it all day. We looked where she was pointing. Some of the wisteria flowers had gone to seed, and all these wonderful long green pods hung down from the branches. They looked as much like beans as anything you’d ever care to eat. “Will you look at that,” I said. It was another miracle. The flower trees were turning into bean trees." (43)

In the book the bean trees, how does this quote forshadow turtles future?
The Bean Trees are a parallel to Turtle's life. They are sprouting in a barren place, and Turtle came from a "barren" home. Just like the trees show determination in trying to survive, Turtle, regardless of all she has been through, shows determination.