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Horseradish is a large perennial herb with coarse leaves and small white flowers. The large taproots are harvested to make the pungent relishes and sauces for which the plant is known. Root cuttings or divisions planted in spring will produce harvestable roots in 180-240 days. The plant can become invasive, so plant it with caution, or keep it contained to prevent it from spreading too far.
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