Brooklyn Botanic Garden's Project Green Reach (PGR) is a children's program that has offered garden-based youth education since 1990. PGR focuses on Grade K-8 students and teachers from local Title I schools who work in teams on garden and science projects. In this exploratory study, the authors used field observations, document analysis, and past participant interviews to investigate PGR's program, model informal science education, and document the influence of the program on urban youth. In all, 7 themes emerged: (a) participants' challenging home and school environments, (b) changes in academic and interdisciplinary skills, (c) changes in science and gardening skills, (d) increased environmental awareness, (e) social and personal growth, (f) a positive life experience, and (g) the cultural significance of the program. (Contains 1 table and 1 note.)