Rough Feather Grass (Stipa calamagrostis)

Rough Feather Grass

Stipa calamagrostis

Elegant feathery plumes sway like golden mist in wind. Ornamental grass; common names: Rough Feather Grass, Needle Grass.

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 garden positions and tolerates light shade in hot climates
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Watering Water deeply when the top 5cm of soil is dry; drought-tolerant once fully established
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Temperature Hardy to -20°C; tolerates hot, dry summer conditions without significant stress
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Characteristics

  • Leaf: Narrow, linear, blue-green foliage forming dense, compact clumps
  • Flower: Silvery-golden, feathery panicles that arch gracefully above foliage
  • Stem: Slender, upright culms supporting the delicate flowering plumes
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Care Guide

Watering

Water regularly to support establishment; reduce watering once mature

Fertilization

Apply a light, balanced granular feed once at the start of growth. Avoid high-nitrogen fertilizers to prevent weak, floppy culms

Eggshell powder top-dress:Crush dried, rinsed eggshells into fine powder; sprinkle lightly around the base of clumps in early spring and water in gently to release nutrients
Pruning
  • Cut back old, brown foliage to 5cm above ground in late winter or early spring to make way for new growth
  • Remove spent flower plumes after blooming to maintain a tidy garden appearance
  • Thin overcrowded clumps every 2–3 years in early spring to improve airflow and reduce competition
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects for humans

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Garden Uses & Culture

Culture: Symbolizes grace and resilience in ornamental garden design

Usage: Ornamental grass for border plantings, wildflower meadows, and dried flower arrangements