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Can You Grow Horseradish in Montana?

US · USDA Zone 4b · zones 3a, 3b, 4a, 4b, 5a, 5b

Grows well here

Horseradish grows well here and is virtually impossible to kill — a great low-effort perennial.

Plant zones

3a–9a

Montana last frost

mid-April

Montana first frost

mid-October

Days to harvest

300–365 days

When to plant Horseradishes in Montana

Direct sow

Oct 1 – Oct 31

Harvest

Jun – Jul (following year)

Dates are approximate, based on Montana's average frost dates. Your exact yard may vary by microclimate.

About Horseradish

Horseradish is a vigorous, nearly indestructible perennial grown for its pungent taproot — the fresh stuff blows store-bought away. Plant it where you want it to stay.

Plant root cuttings in spring, burying on a slight angle. Harvest roots in fall after a few frosts for best heat. It spreads — contain it in a pot or dedicated bed.

Full horseradish growing guide →

Gardening in Montana

Montana has a semi-arid continental climate with cold winters and warm summers. Most of the state is Zone 4-5; protected valleys are Zone 5-6. Short but intense growing seasons.

See what grows well in Montana →

Frequently asked questions

Can you grow Horseradish in Montana?

Horseradish grows well here and is virtually impossible to kill — a great low-effort perennial.

What zone is Montana?

Montana spans USDA Zone 4b (3a, 3b, 4a, 4b, 5a, 5b).

When do you plant Horseradishes in Montana?

Plant Horseradishes Oct 1 – Oct 31, harvest Jun – Jul (following year).