Yes, you can use a kid sprinkler for watering a garden or a lawn, though not all are suitable. The crazy spray of the Tidal Storm Hydro Swirl Spinning Sprinkler will be uneven in its watering pattern, but the Melissa & Doug Sunny Patch Blossom Bright Sprinkler has an even spray that will water everything effectively. The latter model even has a design that will blend right in with the veggies and flowers of your garden.