Black-eyed Vetch (Vicia melanops)

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Sunlight Full sun to partial shade; tolerates dry, sunny meadow conditions and light afternoon shade in hot climates

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Watering Water deeply when the top 2 cm of soil is dry; drought-tolerant once established, so avoid overwatering

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Temperature Hardy to light frost; thrives in cool to temperate summer temperatures, withstanding short periods of heat up to 35°C

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Leaf: Pinnately compound with 4–8 pairs of oblong leaflets; terminates in a coiled tendril for climbing support
Flower: Pea-like purple blooms with a distinct black central eye; clustered in axillary racemes of 3–8 flowers
Stem: Slender, slightly hairy, trailing or weakly upright, with branching growth

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Watering

Keep soil slightly moist during active growth to support flowering

Fertilization

No regular fertilization needed; fixes nitrogen via root nodules. As a legume, it produces its own nitrogen, so additional feeding is unnecessary

Crushed eggshell powder：Dust lightly on the soil surface around the base of the plant; no dilution needed to support strong stem and leaf development

Pruning

Deadhead spent blooms to encourage extended flowering and prevent self-seeding if desired
Trim back leggy stems in mid-summer to maintain compact growth and improve airflow
Remove yellowing or damaged foliage to reduce the risk of fungal disease

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Warning: this plant may be toxic.

Pets & Humans

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

Humans: No documented toxic effects for human ingestion or contact

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Culture: N/A

Usage: Wildflower meadow component; nitrogen-fixing cover crop to improve soil fertility