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Horseradish

vegetable

Perennial root — replant a piece each spring, harvest large roots in fall. Raised beds are ideal because they contain its aggressive spread. Roots get more pungent after a frost. A single plant can last years; divide in spring to propagate.

At a glance

USDA Zones
2–9
Sun
Full sun (6+ hrs)
Water
Medium — water when top inch of soil is dry
Soil
loam, sandy
pH
neutral, acidic
Spacing
18 in. between plants
SFG footprint
2×2 ft cell footprint
Days to maturity
~150 days

Planting & harvest windows

Northern Hemisphere timing. Adjust ±4–6 weeks based on your last/first frost dates.

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Plant
Harvest

Plant  Harvest

Good companions

Recommended varieties

Add Horseradish to your raised bed — the planner handles spacing and companion warnings automatically.

Open the planner →
← All plantsFull companion chart →