Energizing and nutritious, buckwheat is available throughout the year and can be served as an alternative to rice or made into porridge.While many people think that buckwheat is a cereal grain, it is actually a fruit seed that is related to rhubarb and sorrel making it a suitable substitute for grains for people who are sensitive to wheat or other grains that contain protein glutens. Buckwheat flowers are very fragrant and are attractive to bees that use them to produce a special, strongly flavored, dark honey.