A 2013 scholarly analysis examined research conducted between 1990 and 2010 on the impact of school gardens on academic performance. It found "overwhelmingly that garden-based learning had a positive impact on students' grades, knowledge, attitudes and behavior."
Similarly, a University of Georgia study on the value of school gardening found that "beyond increasing knowledge of the directly related science topics of gardening, plant ecology and nutrition, garden-based learning actually addresses all eight of the National Science Education Standards."