In addition to supervising kids in the garden, fence off any areas or plants that should be avoided, such as thorn bushes or poison ivy. Provide child-sized hoes and rakes for your kids to use in the garden. Do not leave pruning shears and other sharp tools within their reach. Always place forks, rakes, and other pointed tools tines down. Use tall stakes for plant supports.
Short stakes can cause eye injuries.
When pruning, make sure your kids are out of harm's way. Don't leave pruned stalks at their eye level as the sharp points can do damage. It's also a good idea to avoid use of all chemicals in the garden, especially in the part that your kids will help plant or tend. If you find it necessary to use them, read the label before applying and don't spray on lawns or weeds when kids and pets are in the area. These chemicals can be absorbed through bare feet.