Description
Product Description
Sorghastrum nutans ‘Indian Steel’ (Indian Steel Indiangrass) is a standout selection of native Indiangrass prized for its cool steel-blue foliage, upright architecture, and showy golden plumes in late summer to fall. Strong, vertical clumps transition to glowing gold and copper in autumn and hold structure into winter, providing movement, habitat value, and four-season interest. Deep-rooted and drought-tolerant, ‘Indian Steel’ thrives in full sun and varied soils—an ideal choice for meadows, restoration, screens, and low-maintenance borders.
Quick-Glance Specs
| Attribute | Details |
| Botanical Name | Sorghastrum nutans ‘Indian Steel’ |
| Common Name | Indian Steel Indiangrass; Blue Indian Grass |
| Plant Type | Warm-season perennial bunchgrass |
| Native/Non-native | Native species (North America); cultivar selection |
| Hardiness Zone | 4–9 |
| Sun Exposure | Full sun (best color and posture in sun) |
| Moisture | Dry to medium; tolerates brief periodic moisture once established |
| Mature Height | 3–5 ft foliage; 5–7 ft in bloom |
| Mature Spread | 2–3 ft clump |
| Growth Habit | Upright, clumping; deep, fibrous roots |
| Growth Rate | Moderate |
| Fragrance | None |
| Bloom Time | Late summer to fall (golden, plume-like panicles) |
| Seasonal Interest | Summer–winter; steel-blue summer blades; copper-gold fall color; persistent stems |
| Foliage & Features | Distinctive steel-blue leaves; feathery golden seed heads |
| Landscape Features | Drought tolerance, erosion control, wildlife cover/seed |
| Landscape Uses | Meadows/prairies, restoration, screens/backdrops, slopes, streetscapes |
| Soil | Lean to average, well-drained; tolerates clay and rocky soils |
| Water Needs | Low after establishment |
| Maintenance | Low; cut back in late winter/early spring |
| Deer/Pest Resistance | Generally deer resistant; few serious pests |
| Container Friendly | Best in large containers with excellent drainage |
| Recommended Spacing | 24–36″ for upright clumps and airflow |
Care & Growing Information
- Site & Light: Plant in full sun for the strongest stems, bluest foliage, and best flowering.
- Soil & Water: Adaptable to well-drained loam, sand, or clay. Water to establish; then notably drought tolerant. Avoid chronically wet soils.
- Planting: Set crowns level with soil; space 24–36″ for airflow and vertical poise. Mulch lightly (keep mulch off crowns).
- Maintenance: Low-care. Leave stems for winter structure and wildlife; cut back to 6–8″ in late winter/early spring. Fertilize sparingly—excess fertility or irrigation can relax the habit.
- Design Tips: Repeat in drifts for prairie rhythm and color. Pairs beautifully with coneflowers, asters, rudbeckias, and other warm-season natives. Excellent on slopes for erosion control.
Key Features
- Striking steel-blue foliage with upright prairie architecture
- Golden plumes late season; copper-gold fall color
- Drought-tolerant, deep-rooted, and long-lived
- Four-season interest and strong wildlife value
- Reliable performer on clay, lean, or rocky soils
Problems
- Few serious issues. May flop in shade or overly rich/wet soils—provide sun, lean conditions, and modest irrigation. Occasional leaf spot/rust in stagnant humidity—ensure spacing and airflow.
Uses in the Landscape
- Meadows/prairie restorations and naturalized drifts
- Tall screens/backdrops in sunny borders and streetscapes
- Slopes and roadsides for erosion control and habitat
- Low-maintenance, four-season structure in modern naturalistic designs
Availability / Ordering
- Sizes Offered: #1 Gallon, 4″, DP-50 Plug
- Recommended Spacing: 24–36″ for cohesive drifts and upright habit.
Why You’ll Love It
- Cool steel-blue blades topped by golden plumes
- Water-wise resilience in hot, sunny sites
- Minimal care—cut back once a year and enjoy dependable structure
Quick Highlights
A drought-tough native bunchgrass with steel-blue foliage and golden late-season plumes—‘Indian Steel’ delivers movement, habitat value, and four-season interest from prairie plantings to low-input, modern landscapes.
