Indiangrass (Sorghastrum nutans)

Indiangrass

Sorghastrum nutans

Warm golden plumes sway in autumn winds, adding prairie charm to landscapes. Perennial ornamental grass; common name: Indiangrass.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; thrives in open, sunny prairie-like conditions; tolerates light afternoon shade in hot climates
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Watering Water deeply when the top 5–7 cm of soil is dry; drought-tolerant once established
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Temperature Hardy to -30°C; tolerant of hot, dry summer temperatures; avoids prolonged waterlogged soil
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Characteristics

  • Leaf: Narrow linear blue-green leaves up to 90 cm long, turning golden-yellow in fall
  • Flower: Feathery golden-brown panicles with subtle bronze tints
  • Stem: Erect, sturdy culms forming tight, upright clumps
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Care Guide

Watering

Keep soil evenly moist during active growth; avoid overwatering

Fertilization

Apply light balanced fertilizer once in early spring. Avoid high-nitrogen feeds to prevent floppy, weak growth

Banana peel compost tea:Compost banana peels for 2–3 months, steep in water for 24 hours, dilute 1:20 for root drench to support flowering and foliage health
Pruning
  • Cut back dead foliage to 10–15 cm above ground in late winter before new growth emerges
  • Thin overcrowded clumps every 2–3 years to improve airflow and reduce competition
  • Remove spent flower plumes in autumn for a neater garden appearance, or leave for winter bird foraging
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA verified: Non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact

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Garden Uses & Culture

Culture: Symbolizes prairie restoration and support for native wildlife ecosystems

Usage: Ornamental grass for meadows, borders, and naturalized gardens; provides seed and shelter for birds