Horseradish Plant

Horseradish is a hardy, long-lived perennial grown mainly for its pungent white roots. Its large leaves form a broad rosette, and small white flowers may appear in early summer. North Carolina State Extension describes it as a vegetable crop and reports a wide mature range; Wisconsin Extension gives a typical rosette about 2 feet tall and a spread of 18 inches or more ([NC State Extension](https://plants.ces.ncsu.edu/plants/armoracia-rusticana/common-name/horseradish/); [University of Wisconsin–Madison Extension](https://hort.extension.wisc.edu/articles/horseradish-armoracia-rusticana/)). ## Edible Garden Use Plant it where the roots can be dug without disturbing nearby plants. The grated root is used for relish, sauces, and seasonings. Deep, loose soil makes harvest easier; a large, deep container can help contain its spreading roots. ## Growing Conditions Horseradish grows in full sun or partial shade and prefers deep, moist, well-drained soil. Water during active growth, especially in dry weather. It is hardy across a broad range; RHS lists H6, while Wisconsin Extension gives USDA zones 2–9. Foliage dies back in winter and regrows from the roots. ## Maintenance Harvest after frost has killed the leaves or in early spring before growth resumes. Replant healthy side roots if a continuing crop is wanted. Remove stray shoots and root fragments carefully: even small pieces can regrow, and an established patch can be difficult to eradicate.