How to Grow Horseradish: A Guide for Organic Gardeners
Horseradish is a flavorful and versatile root that can add a zesty kick to your favorite dishes. Whether grated on sandwiches, blended into a cream sauce, or paired with potatoes, horseradish is a must-have for any kitchen. Plus, it's surprisingly easy to grow. Here's how you can cultivate your own horseradish organically.
Why Grow Horseradish?
Horseradish is a perennial plant that grows from its root, which is both the planting material and the edible part. It thrives in USDA zones 3–9, making it a hardy addition to many gardens. One word of caution: horseradish can become invasive if not carefully managed, as any leftover root fragments in the soil can sprout new plants.
Planting Horseradish
- Choose Your Container: To keep horseradish contained, plant it in a large container like a 15-gallon Smart Pot or a half wine barrel.
- Prepare the Soil: Fill the container with high-quality potting soil and mix in a root-boosting fertilizer, such as PrimeStart Booster Blend.
- Plant the Root: Place the root in the soil with the crown (the part that will grow leaves) facing up. Bury it about 5 inches deep. Plant only one root per pot, as horseradish plants grow large.
Caring for Your Horseradish
- Fertilize: In spring, apply a high-phosphorus, low-nitrogen fertilizer like Dr. Earth’s Bud & Bloom Booster to encourage root growth.
- Water: Keep the soil moist but not waterlogged, and ensure the container is free of weeds.
- Harvest: After the first frost, gently dig up the plant, ensuring you remove all roots to prevent spreading.
Storing and Using Horseradish
Trim the green tops about an inch above the root and wash thoroughly. Store the roots in a plastic bag in your refrigerator’s crisper drawer until ready to use. With fresh horseradish on hand, you can whip up homemade sauces and condiments to enjoy throughout the season.
Grow horseradish this season for a bold addition to your garden and kitchen. Grow organic for life!
In this video, Tricia shares her tips for planting and growing horseradish.
