Horseradish is a large-leaved, hardy perennial native to Europe that has been cultivated for 3,000 years. The fiery herb grows best in rich, moist, loamy soil. In shallow or rocky soil, yields are less and the roots become malformed. Plant horseradish 'sets' in spring when the soil can be worked, adding organic material such as compost to the soil. Horseradish grows the most during late summer or autumn. For this reason it is best to delay fall harvest as late as possible before the ground freezes. Horseradish can be stored in the dark of the refrigerator, grated for fresh table use up to two weeks, or dried into powder form for longer storage. It is best to rotate the planting site every three to four years for disease management.