Horseradish

Horseradish is a rugged, cold-hardy perennial that thrives in full sun but tolerates light shade. Horseradish needs little to no attention in order to thrive, just make sure the soil isn't waterlogged and water it once a week during dry spells. The only draw back to growing this tasty plant is that it an become quite invasive, so plant where you are able to contain it or where you're comfortable having it spread. Whatever you do, don't till up ground containing Horseradish root or place roots in your compost pile, because you risk spreading the plant all over the garden.