Sorghastrum nutans (Indiangrass)

One of the defining grasses of the tallgrass prairie that once covered much of North America, indiangrass is a confirmed larval host and adult food source for the Pepper and Salt Skipper butterfly, while native bees are documented gathering nesting materials directly from the plant - genuine ecological substance behind its dramatic autumn display.

Species Overview

Sorghastrum nutans, commonly called indiangrass, is a warm-season perennial grass native to the tallgrass prairies and open woodlands of central and eastern North America, typically reaching 5 to 8 feet tall. Showy, feathery, copper-colored flower panicles with conspicuous bright yellow stamens rise well above blue-green foliage in late summer, maturing to light chestnut brown.

Application

• Tallgrass prairie and meadow restoration - a defining historical prairie species
• Larval host habitat for the Pepper and Salt Skipper butterfly
• Native bee nesting-material source
• Erosion control and soil stabilization - deep root system

Growing Conditions / Specification Data

• Light: Full Sun
• Soil/Moisture Tolerance: Dry to medium, well-drained soils; adaptable to heavy clay
• Drought Tolerance: High
• Flood Tolerance: Low - A dry-mesic prairie grass; not documented as flood tolerant.
• Plant Type: Graminoid
• Mature Height: 4-8 ft.
• Fall Color: Yellow, Orange, Red
• Wetland Indicator Status: NI (No Indicator) - see flags
• Native Range: Northeast/Mid-Atlantic (full list)
• Hydrology: Dry-Mesic
• Root Depth: Very Deep (36 in.+)
• Growth Rate: Moderate
• Deer Resistance: Yes (Rarely Damaged)
• Shade Tolerance: Intolerant
• Salinity Tolerance: Moderate
• Growth Habit: Clumping/Mounding
• USDA Hardiness Zones: 2-9
• Pollinator Value: Larval host, supports bees, supports butterflies

Planting Guidance

• Self-sows prolifically and can seed aggressively - best suited to larger prairie, meadow, or naturalized settings rather than small garden beds. Makes excellent fresh or dried cut flowers, remaining attractive through most of the winter.