Broom Sedge Bluestem (Andropogon virginicus): Versatile Native Grass for Landscapes

Plant Profile

Broom Sedge Bluestem (Andropogon virginicus) is a popular perennial bunchgrass widely used in ornamental landscaping and restoration projects. It emerges when daytime temperatures average 60–65°F, forming slender, erect culms up to 4 feet tall. Its flattened, overlapping sheaths have scattered hairs; upper stems are rounded, lower ones keeled. Blades are 1/8–1/4 inch wide, 10–16 inches long, with a rough upper surface. The fall inflorescence—a panicle of 2–4 racemes about an inch long—turns fiery orange, persisting through winter for striking seasonal color.

Growing Conditions

This adaptable grass thrives in full sun across diverse habitats: pastures, grasslands, open woodlands, and gardens. While it prefers sandy soil, it tolerates a wide range of textures, including eroded, low-fertility sites—making it excellent for erosion control.

Establishment and Maintenance

Planting Methods

Preferred method is seeding in late winter when temperatures are in the low 60s (dormant seeding). Sow 10–12 lbs pure live seed per acre at 1/2 inch depth. Leave seeds undisturbed after broadcasting. Increase seeding rate by 50% under minimal seedbed preparation. Plant division is also possible.

Fertility and Management

No fertilization needed—it thrives in low-fertility soils. Growth increases with grazing or frequent haying. If weeds become problematic, control by burning, plowing, or mowing. While easy to establish, long-term persistence can be challenging.

Landscape Applications

Broom Sedge Bluestem excels in naturalistic plantings, meadow restorations, erosion control on slopes, and ornamental gardens where its winter color provides off-season interest. Its adaptability to poor soils makes it a valuable tool for difficult sites.