Children who normally abstain from physical activity may view gardening as a viable non-competitive alternative. The study reported here evaluated the effect of an Oklahoma Cooperative Extension Service after-school gardening program on self-reported physical activity level of children in 3rd through 5th grade using the ACTIVITY self-report instrument. The ACTIVITY instrument described and demonstrated three physical activity levels; non-moving, moving, and fast-moving. A significant difference between pre- and post-test scores of children's self-reported physical activity level was observed. The results of the study indicate gardening was an effective non-competitive way to increase children's self-reported physical activity level in an after-school setting. (Contains 1 table.)