Horseradish is the definition of garden resilience. Famous for the fiery kick of its roots, this perennial powerhouse serves a dual purpose in the permaculture garden: breaking up heavy clay soils with its aggressive taproot and accumulating essential minerals for neighboring plants.
Horseradish (*Armoracia rusticana*). A herbaceous perennial of the Brassicaceae family, native to SE Europe. It is legendary for its tenacity; any fragment of root left in the ground can regenerate a whole plant, making it a perpetual source of food and biomass.
In Permaculture, it is a classic "dynamic accumulator" often planted in fruit tree guilds (especially apples) to prevent fungal issues like scab and to break up soil around the drip line.
Culinary/Medicinal Note: The grated root releases volatile oils that clear sinuses and stimulate digestion. High in Vitamin C with natural antibiotic properties. Use in moderation as a condiment.
| Scientific Name | Armoracia rusticana |
| Format / Pot Size | 11x11cm Pot |
| Hardiness Zone | Zones 3-9 (Extremely Hardy) |
| Light Preference | Full Sun to Partial Shade |
| Water Needs | Medium (Prefers cool, moist soil) |
| Mature Size | 0.8m - 1m Height |
1. Fruit Tree Guild: Traditionally planted with apples, pears, and potatoes to deter beetles and prevent fungal diseases.
2. Biomass & Mulch: The large leaves can be "chopped and dropped" to release stored Potassium and Sulfur back into the soil.
3. Pest Deterrent: The strong, pungent oils confuse pests and act as a natural barrier when planted on garden perimeters.
Warning: Horseradish is invasive if not managed. Plant it in a permanent spot or contain it in a sunken pot if you wish to limit spread.
For thick, straight roots, cultivate in deep, loose soil. Harvest the main root in autumn or winter, replanting small rootlets (thongs) for next year's crop.