Common Sorrel (Rumex acetosa)

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Sunlight Full sun to partial shade; produces more lush foliage in full sun, but tolerates light shade in hot climates

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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root zone to dry out completely

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Temperature Hardy to -15°C; thrives in cool temperate conditions; avoid prolonged exposure to temperatures above 28°C

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Leaf: Basal leaves are glossy arrow-shaped with a tangy, sour flavor; stem leaves are smaller and narrower
Flower: Tiny greenish-red clustered flowers on branching, upright spikes
Stem: Smooth, erect reddish-green stems with minimal branching

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Watering

Water 1–2 times weekly to maintain moist soil; increase frequency during hot, dry spells

Fertilization

Apply diluted organic feed once monthly. Use nitrogen-rich organic feed to support leaf production

Composted eggshell powder：Sprinkle a thin layer of ground eggshells around the base of the plant; mix lightly into topsoil to avoid nutrient runoff

Pruning

Harvest outer basal leaves regularly to encourage new, tender growth
Cut back flowering spikes to redirect energy to leaf production and prevent unwanted self-seeding
Remove yellowing or damaged leaves to improve airflow and reduce disease risk

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Warning: this plant may be toxic.

Pets & Humans

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

Humans: Contains moderate oxalate levels; large ingestion may cause mild gastrointestinal upset

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Culture: N/A

Usage: Edible leaves for salads, soups, and sauces; ornamental foliage for garden borders