Pay special attention to site location, soil preparation, and size. Ensure the garden development, preparation, and planning fit the child's personality and interests. Some rapidly growing root crops that are specially suited for children may include radishes, carrots, and sweet potatoes. Carrots can be difficult if soil fertility is not properly attended to. The smaller finger-size early maturing carrot varieties are best for the young gardener.
Radishes are a sure fire success in most gardens.
Sweet potatoes are an excellent follow-up crop and will usually produce a crop under the most trying environmental conditions. Slips can be produced from the shoots of a rooted sweet potato grown on a window sill. Field crops like popcorn, pumpkins, gourds, and watermelons take up considerable space in the garden but kids love 'em. Get the popcorn planted in late March or early April and be sure to amend the soil with adequate fertilizer or manure since popcorn requires lots of nitrogen for a good yield. Raised bed hills thinned to 4 to 6 plants are a good way to grow this crop.