Here are some great ideas for fast growing seeds - perfect for kids! First: Get Your Supplies! Next: Get to Work! Whether you are introducing your kids to gardening, or making crafts or science projects that involve growing seeds - it can often be beneficial to use seeds that sprout quickly! I did some research and tried out various options. One of our favorite ways to plant seeds is in plastic cups. Cheap, transportable (great for classrooms!) but also you can actually see the roots forming! Vegetables and Herbs: Radishes, lettuce, basil and salad cress (more common in the UK than