Horseradish
Horseradish (*Armoracia rusticana*) is a hardy perennial plant in the mustard family (Brassicaceae) grown mainly for its pungent fleshy root, which is used as a condiment.
Horseradish is a hardy perennial in the mustard family, grown for its pungent root used as a condiment. Native to southeastern Europe and western Asia, it's now cultivated widely and can become invasive.
What it is
Horseradish (*Armoracia rusticana*) is a vigorous herbaceous perennial with large leaves, small white flowers, and a thick fleshy root. The root contains sulfur compounds that create its sharp flavour. It belongs to the Brassicaceae family, alongside cabbage, mustard, broccoli, and radish.
Culinary and other uses
The root is harvested and prepared as a condiment, especially in horseradish sauce and relishes. It's also used as a substitute for wasabi in Japanese cuisine. Beyond food, horseradish is a source of horseradish peroxidase, an enzyme important in biochemistry labs.
Why it matters
Horseradish has been cultivated for at least two millennia, with a long history of medicinal and culinary use. In Canada, it's grown in home gardens and specialty agriculture, familiar as a hardy perennial crop and a pungent condiment.
In short
- Horseradish is a perennial in the mustard family, grown for its pungent root.
- The root is used as a condiment and in sauces; leaves are edible but rare.
- It can spread aggressively if root fragments are left in soil.
- Used in labs for horseradish peroxidase, an important enzyme.
Horseradish is grown in home gardens and specialty agriculture across Canada, and it is familiar to Canadian readers as a condiment and as a hardy perennial crop.
Quick questions
What is horseradish?
Is horseradish related to mustard or cabbage?
What part of the plant is eaten?
Sources
- Wisconsin Horticulture — https://hort.extension.wisc.edu/articles/horseradish-armoracia-rusticana/Supports: Plant family, perennial habit, historical use, native range, and cultivation history.
- Encyclopaedia Britannica — https://www.britannica.com/plant/horseradishSupports: Scientific name, plant description, culinary use, native range, and use as a wasabi substitute.
- NC State Extension Plant Toolbox — https://plants.ces.ncsu.edu/plants/armoracia-rusticana/Supports: Growth habit, size, culinary root use, and North American introduction.
- University of Oxford — https://herbaria.plants.ox.ac.uk/bol/plants400/Profiles/ab/ArmoraciaSupports: Morphology, cultivation history, invasive tendency, and native distribution.
- Royal Horticultural Society — https://www.rhs.org.uk/plants/1601/armoracia-rusticana/detailsSupports: Perennial growth habit, flower colour, root description, and harvest timing.