Principal Walter Russ just wants a simple proposal to trim the overgrown trees outside Geyser Creek Middle School. So how does he end up with a wedding (rather than a weeding) proposal from designer Florence Waters? Meanwhile, a student camps out in a weeping willow tree behind the school; the sixth-grade class explores its roots; and a culinary rivalry develops in the cafeteria. A surprise event saves the day (and the trees, too)!     Includes tips on planting a tree and creating a family tree.