Mexican Feather Grass (Stipa tenuissima)

Mexican Feather Grass

Stipa tenuissima

Wispy, cloud-like foliage sways with the light, a soft dance in the garden. Ornamental clumping grass.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Thrives in full sun; tolerates light afternoon shade in hot, arid regions to prevent foliage scorch
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Watering Water deeply when the top 5 cm of soil dries out; drought-tolerant once fully established
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Temperature Hardy to -15°C; withstands hot dry summers; avoid prolonged waterlogging in freezing temperatures
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Characteristics

  • Leaf: Fine, thread-like bright green foliage forming cascading clumps
  • Flower: Silvery-white feathery panicles that sway freely in wind
  • Stem: Slender upright stems holding flower clusters above foliage
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Care Guide

Watering

Water regularly to establish young plants; reduce frequency once roots are established

Fertilization

Light, balanced feed once in early spring. Use diluted, low-nitrogen feed to avoid excessive foliage growth that may reduce drought tolerance

Eggshell powder top-dress:Crush dried eggshells into fine powder; sprinkle lightly on soil surface every 6 months; water thoroughly to release calcium into the root zone
Pruning
  • Cut back dead foliage to 5 cm above soil in late winter before new spring growth emerges
  • Remove spent flower stalks to maintain a tidy clump appearance
  • Thin overcrowded clumps every 2–3 years to improve airflow and reduce competition
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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: N/A

Usage: Ornamental garden grass, erosion control for sloped areas, dried flower arrangements