When it comes to planning your garden, consider fruits and vegetables your toddlers may (actually) eat at dinnertime. "Plant things that are kid-friendly and easier to grow," says Sparks. At the Tucson Village Farm, she finds that lettuce, tomatoes, melons, cucumbers, strawberries, pumpkins and squash all work well. Come harvest time, carrots are a particular standout: "Kids love to pull carrots out of the ground because it's like pulling a rabbit out of a hat," she says. Foods to avoid? Spicy peppers, naturally, and corn, mostly because of the space it demands. "Corn is wind pollinated, so you can't just have three corn stalks growing in your backyard. You have to have a whole field."