Copper Vetch Plant Care

Copper Vetch (Vignea cuprina) belongs to the Cyperaceae family within the Vignea genus. Copper Vetch is native to the Atlas Mountains in Africa, Europe, the Middle East, Central Asia, the Altai and the western Himalayas, and has been introduced to New Zealand.

Copper Vetch displays a grass-like clumping growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Copper Vetch produces small inconspicuous flowers.

Leaf size: approximately 4 inches.

Vignea cuprina requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Copper Vetch thrives in bright indirect light. Avoid placing Copper Vetch in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Vignea cuprina grows best at temperatures of 65–75°F. Copper Vetch prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Moist, fertile soil with good drainage. Good drainage is essential for Copper Vetch to prevent waterlogging, which leads to root rot and fungal issues.

Feed Copper Vetch every month during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Repot every 1-2 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Copper Vetch can be propagated through division, seeds.

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Copper Vetch is susceptible to aphids, spider mites, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Copper Vetch grows outdoors in USDA Zone 5a – 9b. It survives winters down to planting zone 5a. Copper Vetch is native to the Atlas Mountains in Africa, Europe, the Middle East, Central Asia, the Altai and the western Himalayas, and has been introduced to New Zealand.