How to grow horseradishes

Armoracia rusticana · brassicaceae family · perennial

Horseradish — hero (AI-generated reference image) — AI-generated reference image. Have a photo of this plant? Suggest one below.

Growing basics

Horseradish is a cool-season crop, usually started indoors and transplanted.

Seeds germinate once soil reaches about 50°F.

Varieties run about 180 days to maturity.

Grows best in full sun.

Frost-hardy: keeps going through freezes.

Space plants about 18 inches apart.

Sources

University of Illinois Extension, Horseradish
Penn State Extension, Horseradish Production

3 horseradishes in the library

Common Horseradish · Maliner Kren · Bohemian

Each has a full cited page in the library.

Pests and diseases we cover

Aphid
Cabbage looper
Flea beetle
Powdery mildew
White rust (horseradish)

Identification and treatment for each, with photos, in the library.

Row & Bed covers 3 horseradish varieties, each with a cited care timeline and fertilization schedule, identification and treatment for the 3 pests and 2 diseases that reach them, and planting windows worked out for your ZIP.

Set up your garden

See something that does not match your garden? Write to andy@rowandbed.com.