Botanical profile

Watercress

Latin name
Nasturtium officinale
Common name
Watercress
Type
Aquatic leafy vegetable
Family
Brassicaceae

Watercress is a perennial or semi-aquatic edible plant highly prized for its tender, crisp, and slightly peppery green foliage. Its small, fresh leaves add a lot of flavor to salads, sandwiches, soups, sauces, garnishes, meal bowls, and summer plates. It is ideal for gourmet gardens, specialized vegetable patches, damp containers, and landscaping where a different, fresh, and very nutritious aromatic plant is desired.

Easy to grow when its water needs are met, watercress prefers a location with soft sun or partial shade, in consistently moist, rich, and cool soil. It can be planted near a pond, in a container without excessive drainage, or in a well-moistened trough, provided the soil does not dry out completely. Regular harvesting of young shoots encourages denser growth and allows for tender, flavorful foliage over a long period.

Both decorative, productive, and very useful in the kitchen, watercress is perfect for gardeners looking for an original edible plant to integrate into a cool or damp space. Its strong taste adds a fresh and slightly pungent touch to recipes, while diversifying garden harvests. It's an excellent plant for creating a more complete, natural, and gourmet vegetable garden, especially in areas where humidity can be easily maintained.

Care guide

Care level
Moderate

Choosing this plant

Main benefit
Edible foliage with a peppery taste, ideal for salads and fresh cuisine
Pond, wet bank, grow bed, wet vegetable garden, edible garden
Container growing
Container gardening possible in a moist container or a partially undrained planter
Seasonal care
Harvest young shoots regularly; maintain clean, fresh water; trim back stems to encourage tender regrowth
Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 5 and above
Exposure
Sun to partial shade
Watering
Regular; keep the soil consistently moist or in shallow water
Humidity
Very high humidity; waterlogged soil or shallow water
Fertilization
Light compost; avoid excess fertilizer in the water
Soil type
Very moist, rich, cool soil or clean, shallow water
Soil pH
Neutral to slightly alkaline
Minimum temperature
-20 °C
Propagation method
Stem cuttings or seedlings
Plant appearance

Blooming, foliage and shape

Blooming period
Late Spring to Summer
Flower color
White
Fruiting
Late-season seeds
Foliage color
Green
Foliage type
Semi-persistent
Shape
Creeping to semi-floating habit
Garden structure

Size and growth

Height
6 to 12 inches (15 to 30 cm)
Width
30 to 45 cm (12 to 18 inches)
Growth rate
Rapid growth
Vegetable garden and yield

Companion planting, spacing and harvest

Companion plants
Water mint, chives, lettuce, parsley
Plants to avoid
Cabbages, radishes
Spacing
20 to 30 cm (8 to 12 inches)
Harvest period
Leaves and young shoots from spring to autumn
Not recommended for pets
Not recommended for pets

Pets

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.