Deschampsia cespitosa (Tufted Hairgrass)

One of the few ornamental grasses that genuinely thrives in moderate shade, tufted hairgrass pairs confirmed black walnut tolerance with real larval host value for the Umber Skipper butterfly - a strong choice for moist, partially shaded restoration sites.

Species Overview

Deschampsia cespitosa, commonly known as tufted hairgrass, is a perennial cool-season grass in the Poaceae family. Native to a wide range of habitats across the Northern Hemisphere, including wetlands, meadows, and coastal areas, this grass is highly adaptable to various soil types, from sandy to clay, as long as they are moist. In late spring to early summer, it produces airy, elegant panicles of delicate, purplish to golden flowers that rise well above the foliage.

Application

• Shade garden and woodland-transition plantings - genuinely shade-tolerant for an ornamental grass
• Streambank and shoreline stabilization on consistently moist sites
• Rain garden and seasonally flooded site plantings
• Sites near black walnut, given confirmed juglone tolerance
• Larval host habitat for the Umber Skipper butterfly

Growing Conditions / Specification Data

• Light: Full Sun to Full Shade
• Soil/Moisture Tolerance: Moderately moist to seasonally flooded soils; consistently moist to occasionally wet
• Drought Tolerance: Low - not a drought-tolerant grass
• Flood Tolerance: Moderate - A cool-season grass of moist meadows that tolerates periodically wet soil.
• Plant Type: Graminoid
• Mature Height: 2-4 ft.
• Fall Color: Yellow
• Bloom Color / Period: Purple; June-September
• Wetland Indicator Status: FACW (Facultative Wetland) - Atlantic and Gulf Coastal Plain region
• Native Range: Widespread across North America; also native to Eurasia
• Hydrology: Moist-Wet
• Root Depth: Shallow (Under 12 in.)
• Salinity Tolerance: Low
• Growth Rate: Moderate
• Shade Tolerance: Tolerant
• Growth Habit: Clumping/Mounding
• USDA Hardiness Zones: 4-9
• Deer Resistance: Some
• Pollinator Value: Larval host, supports butterflies
• Juglone Tolerance: Tolerant

Planting Guidance

• Cut back to the ground in late winter for the best spring and summer display.