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French sorrel

Rumex scutatus · Polygonaceae

The gardener's calendar

The right move for September

Ideal time to plant french sorrel: 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 to semi-persistent
Flowering
May to July, discrete reddish flowers
Mature size
30 to 50 cm in height, 40 cm spread
Growth
Fast
Hardiness
Very hardy (down to -15°C)
Origin
Mountainous zones of Europe and Asia
Soil type
Light, well-drained, slightly moist

Care

Watering

Keep the soil consistently moist without waterlogging, especially during the growing season. Reduce watering in autumn and winter. Light mulching helps retain moisture and moderate water fluctuations.

Light Exposure

Prefer partial to full shade, especially in regions with hot summers. Round sorrel tolerates partial sun, but dislikes extreme dryness in full sun. In cooler zones, it can thrive in sunnier locations.

Soil

Prepare a light substrate rich in organic matter and well-drained. Round sorrel prefers slightly acidic to neutral soil. Enrich the soil with well-decomposed compost before planting to encourage growth.

Pruning and Maintenance

Pinch young stems regularly to encourage a compact, bushy habit. Remove faded flowers to extend tender leaf production. In late winter, remove damaged or overly long stems.

Fertilizing

A light application of balanced fertilizer in spring is sufficient. If you're growing the plant for its leaves, slightly nitrogen-rich fertilizer will promote foliage growth. Avoid excess which would diminish leaf delicacy.

Pests and Diseases

Round sorrel is generally robust and rarely affected by diseases. Occasionally watch for aphids in spring. Good air circulation and balanced moisture reduce the risk of root rot or powdery mildew.

Did you know?

Round sorrel, rich in calcium oxalate, was long used in the Middle Ages as a folk remedy and culinary plant to season sauces. Its fleshy and delicious leaves remain a sought-after gastronomic curiosity in fine dining, particularly in Western Europe, where it symbolizes a link between herbal traditions and culinary modernity.

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.