Horseradish plant profile
Armoracia rusticana
A perennial herb for full sun.
Last updated .
When to plant
When to plant Horseradish
Horseradish is a hardy perennial grown from root cuttings, called sets. University of Minnesota Extension says to plant the sets in early spring as soon as the soil is workable, setting them vertically or at a 45 degree angle and covering with two to three inches of soil.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Horseradish in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Planting depth
- 2 in
- Lifecycle
- Perennial
- Spacing
- 12 in apart
Common problems
Watch for these
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Growing horseradish in home gardens
University of Minnesota Extension. Supports general reference. Checked 2026-06-18.