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Broadleaf pepperweed

Lepidium latifolium · Brassicaceae

The gardener's calendar

The right move for September

Ideal time to plant broadleaf pepperweed: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Deciduous, broad basal leaves with serrated edges
Flowering
Spring to early summer (April-June)
Adult size
60 to 100 cm tall, 40 to 60 cm wide
Growth
Fast, particularly vigorous
Hardiness
Very hardy, down to -15°C
Origin
Temperate Europe and Western Asia
Soil type
Undemanding, tolerates chalky and dry soils

Care

Sunlight

Choose a sunny or partially shaded location for optimal flowering. Large Pepperwort adapts well to direct light and also tolerates slightly shaded areas. Avoid overly dark spots that would slow its growth.

Watering

Once established, Large Pepperwort tolerates drought well and requires little watering. Water regularly during the first year after planting to encourage root development. During prolonged dry spells, moderate watering is sufficient.

Soil

This plant is undemanding regarding soil quality. It tolerates chalky, stony, and even poor soils. Well-draining soil is preferable to prevent moisture buildup in winter.

Pruning and deadheading

Remove faded flowers to extend flowering and prevent excessive self-seeding. In late winter or early spring, cut the plant back to 10-15 cm from the ground to encourage dense, compact new growth.

Fertilizing

Large Pepperwort requires virtually no fertilizing, especially in reasonably fertile soil. A light application of balanced fertilizer in spring can boost vigor, but it's not essential.

Diseases and pests

Generally robust and rarely affected by pests. Watch for excess moisture that could promote fungal diseases in winter. Space plants properly to ensure good air circulation.

Did you know?

Large Pepperwort was long used in traditional European medicine for its supposed diuretic properties, which is why it was popularly used in herbal teas. This very vigorous plant can become invasive in certain habitats, making it a persistent herb commonly found along paths and roads throughout temperate Europe for centuries.

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.