Botanical profile

Horseradish

Latin name
Armoracia rusticana
Common name
Horseradish
Type
Perennial root vegetable
Family
Brassicaceae

Horseradish is a perennial vegetable and aromatic plant known for its white root with a powerful, pungent, and very spicy flavor. Widely used as a condiment, it brings a lively and biting flavor to sauces, marinades, meats, fish, sandwiches, potatoes, beets, vinaigrettes, and traditional recipes. Its large, green foliage also adds a beautiful presence to vegetable gardens, useful plant gardens, and edible landscapes where a robust and durable plant is desired.

Easy to grow, horseradish prefers a sunny to slightly semi-shaded location, in deep, rich, fresh, and well-drained soil to allow its root to develop properly. It appreciates regular watering during the growing season, especially in hot weather, to obtain fleshier and better-quality roots. As it can become vigorous and regrow from root fragments, it is best to plant it in a well-defined area or a large container to better control its expansion.

Both productive, hardy, and very useful in the kitchen, horseradish is ideal for gardeners looking for a distinctive and flavorful edible plant. Its root is usually harvested when the plant is well established, then grated fresh to release all its aromatic intensity. It is an excellent plant to enrich a gourmet vegetable garden, a herb garden, or a collection of traditional plants with a strong, distinctive, and sought-after flavor.

Care guide

Care level
Easy

Choosing this plant

Main benefit
Very vigorous and hardy edible spicy root
Vegetable garden, edible garden, seasoning, container gardening, companion plant
Container growing
Potted culture recommended in a large, deep container to control its spread
Seasonal care
Harvest the roots in the autumn after the first frosts; remove root fragments to limit expansion; divide as needed
Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 3
Exposure
Sun to partial shade
Watering
Regular; keep the soil moist without waterlogging
Humidity
Average humidity; prefers cool, deep soil
Fertilization
Compost in spring; moderate fertilization in poor soil
Soil type
Fertile, deep, loose, cool, and well-drained soil
Soil pH
Slightly acidic to neutral
Minimum temperature
-30°C
Propagation method
Root division
Plant appearance

Blooming, foliage and shape

Blooming period
Late spring to summer
Flower color
White
Fruiting
Edible taproot
Foliage color
Green
Foliage type
Obsolete
Shape
Large, vigorous leafy rosette
Garden structure

Size and growth

Height
60 to 90 cm (24 to 36 inches)
Width
45 to 60 cm (18 to 24 inches)
Growth rate
Rapid growth
Vegetable garden and yield

Companion planting, spacing and harvest

Companion plants
Potatoes, rhubarb, asparagus, fruit trees
Plants to avoid
Cabbage, broccoli, radishes
Spacing
45 to 60 cm (18 to 24 inches)
Harvest period
Autumn Roots
Not recommended for pets
Not recommended for pets

Pets

Repellent
Helps repel certain pests

Repellent

Deer
Less attractive or generally tolerated by deer

Deer

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.