There have been a number of studies documenting the impact of school gardens and outdoor classrooms.
- Outdoor Education Research Summary
- Do our kids have nature deficit disorder?
- Impact of garden-based learning on academic outcomes in schools: synthesis of research from 1990-2010
- Testing the use of natural schoolyards to develop stewardship attitudes in students
- Soliders of the Soil: a historical review of the United States school garden army
- Ten reasons to take your students outside
- Digging In program evaluation literature review