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key growing information
Horseradish Root: Key Growing Information
How to grow horseradish from root cuttings: soil preparation, planting angle and depth, lifting side roots, harvest timing and storage.
By Hensley’s Seed Co.
Horseradish - Key Growing Information
SCIENTIFIC NAME:
Armoracia rusticana
CULTURE:
Loose, well-drained soil with a pH of 6.2–6.8 gives the best roots. When your roots arrive, dig the bed about a foot deep and mix in compost, manure or fertilizer. Open a furrow 5–6" deep and lay root cuttings 12" apart at a slant, 2–3" deep, with the flat-cut end up. Water if the soil is dry and as needed through the season. For larger, smoother main roots, gently remove the side roots as the crop grows (called lifting) and save them for replanting; this step isn't needed for a wild-type or field-run crop.
HARVEST:
Dig roots in late fall once they're 8–10" long and 2–3" across, or in early spring before regrowth; dig before plants leaf out to keep the bite. A hard frost improves the flavor. Lift plants with spading forks or a shovel, taking care not to damage the thick, fleshy taproots.
STORAGE:
Keep trimmed, washed roots in perforated plastic bags or containers in the refrigerator, or unwashed roots in a root cellar, ideally at 32–33°F (0–0.5°C).
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