Why did Leona visit the lot in the book Seedfolks?

In the book "Seedfolks" by Paul Fleischman, Leona visits the lot to honor her grandmother's memory and to address the problem of the litter that has accumulated there. She is motivated by her desire to clean up the area and transform it into a community space. Her visit symbolizes the beginning of change and the potential for community engagement, as she envisions turning the abandoned lot into a vibrant garden. Leona's actions inspire others in the neighborhood to take part in the revitalization effort.