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Can You Grow Horseradish in New Brunswick?

Canada · Canadian Zone 5 · zones 4, 5, 6

Grows well here

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

Plant zones

3a–9a

New Brunswick last frost

mid-April

New Brunswick first frost

mid-October

Days to harvest

300–365 days

When to plant Horseradishes in New Brunswick

Direct sow

Oct 1 – Oct 31

Harvest

Jun – Jul (following year)

Dates are approximate, based on New Brunswick'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 New Brunswick

New Brunswick has a maritime continental climate. The Saint John River Valley is Zone 5b-6a. Four distinct seasons with a productive 5-6 month growing season. Known for potatoes, blueberries, and fiddleheads.