Armoracia rusticana Horseradish, believed to be a native of east-central Europe, was considered a drug before it became a condiment. This strong pepper root was used to quiet persistent coughs from influenza, stimulate the nervous system, and even cure scurvy. Modern science has identified a multitude of beneficial phytochemical and antioxidant compounds as well as minerals in the rhizomes. Plant this vigorous perennial crop for years of harvests.
This pungent, deep-rooted perennial is one of the easiest garden vegetables to grow. It prefers well-dug soil rich in organic matter. It also spreads easily, so you may want to isolate it. Apply 1-1 1/2 pounds of TSC's Complete fertilizer per 20 square feet. Mix the fertilizer into the top 3-4 inches of soil. Dig a shallow trench and place the roots in the trench horizontally, spacing them 1-2 feet apart and cover with 2 inches of soil. You'll harvest larger roots if the plants are kept well watered throughout the summer.
Insects & Diseases
None that we know of. Contact your county extension agent with specific questions.
Harvest & Storage
Dig the roots in the fall after the tops have frosted and replant some of the smaller roots. Harvest the larger roots for use in the kitchen. Store the harvested roots in the refrigerator in a plastic bag. Wash, trim, and grate. Add vinegar or lemon juice to keep the chopped root from turning brown.