One-glumed Hard-grass (Hainardia cylindrica)

One-glumed Hard-grass

Hainardia cylindrica

Slender, upright grass with cylindrical spikes, a quiet meadow staple. Annual grassy herb; common name: One-glumed Hard-grass.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates dry, exposed coastal or meadow conditions
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Watering Water deeply when the top 2 cm of soil is completely dry; highly drought-tolerant once established
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Temperature Thrives in warm, dry climates; tolerates light frost down to 5°C
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Characteristics

  • Leaf: Narrow, linear, flat or slightly rolled leaves, up to 15 cm long
  • Flower: Cylindrical, dense spike inflorescences with single-glumed florets
  • Stem: Slender, smooth, upright stems with few lateral branches
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Care Guide

Watering

Keep soil slightly moist during active growth; avoid waterlogging

Fertilization

Light top-dressing with organic matter only if soil is severely nutrient-poor. Avoid high-nitrogen fertilizers to prevent excessive foliage growth at the expense of flowering

Banana peel compost tea:Use fully composted banana peels steeped in water for 24 hours; dilute 1:40 for root drench to avoid nutrient burn
Pruning
  • Trim spent flower spikes after blooming to tidy growth or encourage self-seeding
  • Remove dead, yellowed foliage in late autumn to maintain a neat appearance
  • Thin overcrowded clumps in early spring to improve air circulation and reduce competition
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No known toxicity to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Forage for small livestock; erosion control in dry, sloped areas