3. Eggplant

Kids often enjoy watching plants like eggplants grow, because initially, they produce pretty purple flowers. They prefer higher temperatures, so you should start them in the spring. They require a lot of moisture so that their fruits can grow big, so it helps to apply a layer of mulch around the plants to block the sun from drying up all the water in the soil. They can get heavy, so you’ll likely need a stake once your plant starts producing more than five fruits at a time.