Slough Sedge is good for erosion control, Common in ditches, swales & wetlands

Slough sedge (carex obnupta) is a hardy Pacific Northwest native that thrives in wet soils, shallow water, and soggy ground—making it a perfect choice for restoration sites and rain gardens. Its dense, compact clumps help stabilize soil and prevent erosion, while its tall shoots and tiny spring-to-summer blooms offer valuable cover and food for local wildlife.

Commonly found along lakes, rivers, forested wetlands, and coastal swamps, slough sedge can grow up to five feet tall, forming lush green stands that support both habitat and ecological health. Its grass-like foliage and creeping rhizomes allow it to spread naturally and enrich wetland environments

• Binomial Name: Carex obnupta
• Soil Type: Very wet soil, standing water
• Sunlight: Full sun or part shade
• Form/Growth: Dense, compact clumps
• Plant Type: Creeping rhizome grass
• Foliage: Grass-like
• Flowering: Yes

This native plant spotlight has been brought to you by the City of Beaverton’s Landscape & Urban Forestry Department.