Louisiana 4-H Seeds of Service School Gardens, a K-12 Learn and Serve Grant program, provides a descriptive view of how school gardens along with classroom instruction link curriculum to outdoor classrooms. The purpose of the process evaluation was to describe curriculum implementation fidelity, reach of the gardening program to participants, use of garden product, program materials, and teacher characteristics, mediating intervention impact on study outcomes. Eighty-seven percent of classrooms planted vegetable gardens, with a focus on science and math, using the Junior Master Gardener™ curriculum. It was found that school gardens can be effective in supporting classroom curriculum.