Learners study how to plant a seedling, how to mulch the trees into the nursery bed, transplant seedlings to another site or school, and determine why we need to water and mulch trees.

Third graders make books which illustrate the growth and development of a saguaro cactus from its beginnings as a seed all the way through its death. They trace the life cycle of the saguaro, identify each of the stages in its life,...