Grass, Sorghastrum Nutans 'Sioux Blue'

Indian Grass

Sorghastrum nutans ‘Sioux Blue’ is a warm-season native ornamental grass valued for its upright habit, blue-green foliage, and showy golden plumes. Narrow leaves emerge with a blue tint in spring, maintain a soft blue-green color through summer, and turn rich golden-yellow to orange in fall, followed by airy, golden flower panicles in late summer that catch the light and persist into winter. Its strong vertical form and native adaptability make it ideal for prairie-style plantings.

Type: Perennial ornamental grass

Mature Size:
Width: 2–3 ft
Height: 4–5 ft (to 5–7 ft in flower)
(10-year size: forms expanding clumps)

USDA Zones: 4a–9b
Form: Upright, vertical, clump-forming
Light: Full sun (best color and structure)
Soil: Well-drained soils; prefers dry to average conditions
Water: Low; very drought tolerant once established

Wildlife: Provides cover; supports native insects and birds


Features & Landscape Uses


Blue-green foliage with strong fall color



Golden plumes add late-season interest



Strong vertical accent for structure



Ideal for prairie, meadow, and naturalized plantings




Care
Cut back to the ground in late winter before new growth begins. Plant in full sun and well-drained soil. Avoid overly rich or wet soils. Very drought tolerant once established. Divide every few years if needed.

Plant type

Ornamental Grass

Height

4-5'

Width

2-3'

Hardiness zones

4–9

Sunlight

Full Sun

Growth rate

Fast

Bloom time

Early Fall, Fall, Late Summer

Flower color

Yellow

Leaf color

Green

Fall color

Blue Green, Copper

Soil

Clay, Dry Area, Well Drained

Shape

Clump, Upright

Deer resistant

Yes

Drought tolerant

Yes