How to Plant, Grow, and Harvest Horseradish

Horseradish is a pungent root vegetable known for its intense, spicy flavor, often used as a condiment in various culinary traditions.

Its sharp taste comes from the release of volatile oils when the root is grated or crushed, making it a popular addition to dishes that require a bit of heat and zing.

Typically, horseradish is prepared as a sauce, mixed with vinegar and sometimes cream, and is commonly served alongside roast beef, seafood, or in Bloody Mary cocktails.

In addition to its culinary uses, horseradish is also believed to have various medicinal properties, including aiding digestion and relieving sinus discomfort.

How to Grow Horseradish

Growing horseradish is relatively easy, and it’s known for its vigorous growth and low maintenance requirements. Below is a guide to help you get started.

Planting Horseradish

Location:

• Horseradish thrives in full sun but can tolerate partial shade. Choose a location with well-drained soil.

Soil Preparation:

• Horseradish prefers slightly acidic to neutral pH soil (6.0 to 7.5). Loosen the soil to a depth of 12-15 inches and amend with compost for better drainage.

Planting Time:

• Plant horseradish in early spring, as soon as the soil can be worked, or in the fall, before the ground freezes.

Planting Method:

• Horseradish is typically grown from root cuttings, called “sets.”
• Cut a root into 6-8 inch segments with the thick end at the top.
• Plant the sets at a 45-degree angle, with the top about 2 inches below the soil surface and the lower end about 6-8 inches deep.

Growing Horseradish

Watering:

• Water the plants regularly, keeping the soil consistently moist but not waterlogged. Horseradish is relatively drought-tolerant but grows better with regular watering.

Fertilizing:

• Fertilize sparingly, as horseradish doesn’t require much feeding. You can apply a balanced fertilizer (10-10-10) in early spring.

Mulching:

• Mulch around the plants to retain moisture and suppress weeds. Use straw, leaves, or grass clippings.

Maintenance:

• Remove any weeds that compete with your horseradish. The plant can become invasive, so you might want to contain it by planting it in a large container or using barriers in the ground.

Harvesting Horseradish

Timing:

• Harvest horseradish roots in late fall, after the first frost, as this is when they are most flavorful. You can also harvest in early spring before new growth begins.

Harvesting Method:

• Use a spade or fork to dig around the roots, being careful not to damage them. Lift the entire plant, including the crown, from the soil.

Storage:

• Store harvested roots in a cool, dark place, like a root cellar or refrigerator. They can last for several months if stored properly.

Replanting:

• Save some root cuttings to replant for the next season. Trim the tops and bottom portions and plant them as described above.

Using Horseradish

Preparation:

• To use fresh horseradish, peel the roots and grate them. The grated root can be used in sauces, marinades, or as a condiment.
• Grating releases its intense, pungent flavor, so be cautious when handling it.

Preservation:

• You can preserve horseradish by mixing the grated root with vinegar and storing it in the refrigerator for several weeks.

Horseradish Growing Zone

Horseradish grows best in USDA hardiness zones 3 through 9. It is a hardy perennial that thrives in cooler climates, making it suitable for regions with cold winters and moderate summers.

However, it can also adapt to warmer zones as long as it’s given enough water and some shade during the hottest part of the day.

Growing Horseradish FAQ

Sign up to get our FREE weekly emails

Gardening guides, tips, & videos delivered right to your inbox!