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Creeping yellow-cress

Rorippa sylvestris · Brassicaceae

The gardener's calendar

The right move for September

Ideal time to plant creeping yellow-cress: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Family
Brassicaceae
Type
Annual or biennial herbaceous plant
Foliage
Deciduous, medium green, finely divided
Flowering
May to September, pale yellow flowers
Mature size
30 to 60 cm in height
Growth
Fast
Hardiness
Hardy, tolerates cold
Origin
Temperate Europe and western Asia

Care

Watering

Keep the soil regularly moist, especially during active growth and dry periods. Watercress appreciates cool environments. Water at the base to prevent leaf diseases and adjust frequency according to climate conditions.

Light exposure

Place the plant in full sun or partial shade. It tolerates semi-shaded areas well and prefers bright exposure for optimal growth. Avoid areas that are too hot and dry in summer.

Soil

Watercress thrives in cool, well-drained soil rich in organic matter. It tolerates moist soils and slightly acidic to neutral conditions. Enrich the substrate with compost before planting to promote establishment.

Fertilizer

Apply balanced fertilizer in spring or well-decomposed compost. Watercress doesn't require intensive fertilization. A moderate application is sufficient to support healthy growth.

Pruning and cleaning

Remove spent flowers to encourage continuous blooming and limit self-seeding. Cut back or clean up the plant in late autumn. This operation also helps rejuvenate the clump.

Diseases and pests

Like other brassicas, watercress can be affected by flea beetles, aphids, or fungal diseases in excessively humid conditions. Ensure good air circulation and foliage hygiene to prevent problems.

Regular watering

Keep the soil fresh and well-drained. Field watercress appreciates consistent moisture without waterlogging. Water moderately and regularly according to weather conditions and substrate drainage.

Did you know?

Field watercress is a classic ruderal plant of disturbed land and roadsides in Europe. Historically, several Rorippa species have been used in traditional medicine as bitter and anti-inflammatory plants. Its scientific name sylvestris means 'of the forests' or 'wild,' although it actually thrives in open humid areas.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.