French Sorrel (Rumex scutatus)

French Sorrel

Rumex scutatus

Tangy, heart-shaped leaves bring bright herbaceous charm. Edible perennial herb; common name: French sorrel.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; partial shade produces more tender, less bitter leaves in warm climates
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root zone to dry out completely during active growth
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Temperature Hardy to -15°C; thrives in cool temperate conditions; avoid prolonged exposure to temperatures above 30°C which can cause leaf wilting
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Characteristics

  • Leaf: Bright green, heart-shaped (scutate) leaves with smooth margins, with a tangy, citrus-like flavor
  • Stem: Erect, slender green stems bearing whorls of small flowers
  • Flower: Tiny, clustered greenish-red flowers arranged in dense whorls along upper stems
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Care Guide

Watering

Keep soil evenly moist; water when the top 1 cm of soil feels dry

Fertilization

Diluted balanced liquid feed every 4 weeks. Discontinue fertilization in autumn and winter when growth slows

Eggshell powder topdress:Crush thoroughly washed, dried eggshells into fine powder; sprinkle a thin layer on the soil surface and gently work into the top 1 cm of soil to avoid attracting pests
Pruning
  • Harvest outer leaves regularly to stimulate new, tender growth
  • Cut back flowering stems immediately after bloom to redirect energy to leaf production
  • Remove yellowing or damaged leaves to maintain plant health and airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: Contains low levels of oxalates; safe for moderate culinary consumption, may cause mild gastrointestinal upset in very large quantities

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Garden Uses & Culture

Culture: N/A

Usage: Culinary herb for adding tangy flavor to salads, soups, and sauces; low-growing ornamental ground cover