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Securigera spp.
crown vetch
Europe, Mediterranean, and western Asia
Overview
Securigera spp. is a genus of leguminous herbs and subshrubs in the pea family (Fabaceae), native to Europe, the Mediterranean, and western Asia, with about 12 species. The widely known S. varia, crown vetch, is a sprawling perennial reaching 1-2 feet (30-60 cm) tall and trailing 2-6 feet (60-180 cm), with pinnately compound leaves of 11-25 small leaflets. Rounded clusters of pink-and-white pea flowers about 0.4-0.5 inch (10-12 mm) long are held on long stalks through summer, followed by slender, segmented seed pods. The deep roots and spreading rhizomes form dense mats that bind soil on slopes. S. varia has been planted widely for erosion control and is now listed as invasive across much of North America, where it crowds out native vegetation. The foliage contains compounds toxic to horses and some other animals. Plants die back in winter in cold climates.
Native Range
Native to Europe, the Mediterranean region, and western Asia. S. varia grows on roadsides, embankments, and disturbed open ground, and has naturalized aggressively across North America after being introduced for erosion control. Plants occupy sunny grassland, slopes, and waste ground.Suggested Uses
Historically planted for erosion control on banks, road cuts, and slopes, where the spreading mats bind soil. Because of its invasive spread, S. varia is now avoided in many regions in favor of non-invasive cover. It is unsuited to mixed borders and small gardens.How to Identify
Appearance
Size & Dimensions
Height1' - 2'
Width/Spread2' - 6'
Bloom Information
Detailed Descriptions
Foliage Description
GreenGrowing Conditions
Sun Requirements
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight