PURPOSE: To cultivate the subject vegetable on commercial production base by sowing beans in a raising seedling box subjected to a specific treatment, sprouting in a semi-dark place, greening the sprout in light place to grow a young vegetable, harvesting the vegetable as the primary harvest, continuing the cultivation as it is and harvesting as the secondary harvest.

CONSTITUTION: Wood chips, synthetic resin fibers, small pebbles, etc., having low fertilizer content are put into a raising seedling box having a number of draining holes on the bottom. Seeds (e.g. seed of young radish) are sowed on the chips, etc., sprinkled with water and sprouted in a semi-dark place. The sprout is transferred to a light place to effect the greening of the sprout. When the sprout is grown to a proper young vegetable having several leaves, the vegetable is cut at the root and harvested as the primary harvest. The remaining root is grown as it is to effect the secondary sprouting and the sprout is grown and harvested as the secondary harvest. The primary harvest and the secondary harvest are put together to obtain the objective vegetable.