Sunflowers are also great for kids. The seeds are big and easy to handle, and they require minimal attention. Kids like to grow big things, so a sunflower fits the bill. The end product is not only eye appealing, but makes a great snack. We put Sunflowers, along with pumpkins, as the top two plants for kids to grow!
Sunflower Mongolian Giant. Grows up to 14 feet tall! One of the largest-seeded varieties available to gardeners, seeds up to 1" long. Plants can grow 12-14' tall with large yellow heads reaching 16-18" across! 90 days.