Armoracia rusticana
horseradish
Common names: kren
Photo: Pethan · CC BY-SA 3.0 · Source
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Description
Horseradish is a perennial herb with a strong taproot that releases sharp mustard oils when grated. Traditionally used as a warming spice in folk medicine, it spreads aggressively in the garden via root fragments, so it is best kept in a defined area.
Care instructions
In spring, plant side shoots (called "Fechser") at an angle in deep, loose soil and give the plant plenty of space. Harvest the roots after the first frost in October when they are most pungent. When digging, leave root fragments in the ground if you wish to maintain the plant; otherwise dig thoroughly, as each root piece will sprout anew.
Companion planting
Good neighbours
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