Horseradish Planting Guide
Horseradish is a vigorous perennial grown for its pungent, spicy roots used as a condiment. Once established, it can be difficult to eradicate, so choose its location carefully.
Armoracia rusticana · Vegetable · Brassicaceae family · 120–180 days to maturity
Where Can You Grow Horseradish?
Horseradish Growing Regions
Click any state to see the Horseradish planting schedule for that location.
Planting Dates by Zone
| Zone | Start Indoors | Direct Sow | Transplant | Harvest |
|---|---|---|---|---|
| Zone 3a | — | — | May 29 | Oct 2 |
| Zone 3b | — | — | May 24 | Sep 27 |
| Zone 4a | — | — | May 20 | Sep 23 – Oct 14 |
| Zone 4b | — | — | May 15 | Sep 18 – Oct 9 |
| Zone 5a | — | — | May 9 | Sep 12 – Oct 24 |
| Zone 5b | — | — | May 2 | Sep 5 – Oct 17 |
| Zone 6a | — | — | Apr 24 | Aug 28 – Nov 6 |
| Zone 6b | — | — | Apr 17 | Aug 21 – Oct 30 |
| Zone 7a | — | — | Apr 8 | Aug 12 – Oct 21 |
| Zone 7b | — | — | Apr 1 | Aug 5 – Oct 14 |
| Zone 8a | — | — | Mar 22 | Jul 26 – Oct 4 |
| Zone 8b | — | — | Mar 11 | Jul 15 – Sep 23 |
| Zone 9a | — | — | Feb 24 | Jun 30 – Sep 8 |
| Zone 9b | — | — | Feb 8 | Jun 14 – Aug 23 |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Soil pH
6 – 7.5
Hardiness Zones
Zone 3a – 9b
Growing Tips
Plant root cuttings at a 45-degree angle in early spring. Harvest roots in late fall for strongest flavor. Contain the plant with barriers or grow in large containers.
Saving Horseradish Seeds
Recommended for Your Garden
Start seeds indoors with reusable cell trays and humidity domes.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Keep your garden organized with durable, weather-resistant plant labels.
Level Up Your Garden
Horseradish by State
- Alabama
- Alaska
- Alberta
- Arizona
- Arkansas
- British Columbia
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Manitoba
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Brunswick
- New Hampshire
- New Jersey
- New Mexico
- New York
- Newfoundland and Labrador
- North Carolina
- North Dakota
- Northwest Territories
- Nova Scotia
- Nunavut
- Ohio
- Oklahoma
- Ontario
- Oregon
- Pennsylvania
- Prince Edward Island
- Quebec
- Rhode Island
- Saskatchewan
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
- Yukon
Frequently Asked Questions
How long does it take to grow Horseradish?
Horseradish (Armoracia rusticana) takes 120 to 180 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.
What zones can Horseradish grow in?
Horseradish can be grown in USDA zones 3a through 9b. Use the planting calendar above to find the exact dates for your zone.
How much sun does Horseradish need?
Growing Horseradish requires Full Sun (6-8+ hours), Moderate — regular watering, and soil pH of 6 to 7.5.