Bulbous Barley (Hordeum bulbosum)

Bulbous Barley

Hordeum bulbosum

It forms grassy clumps with edible grains, quiet and functional. Cool-season grass; common name: bulbous barley.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates cool, open growing conditions
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Watering Water deeply when top 2–3 cm of soil is dry; avoid overwatering to prevent bulb rot
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Temperature Hardy to -10°C; prefers cool growing temperatures below 25°C
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Characteristics

  • Leaf: Linear, flat, bright green blades 10–30 cm long with rough margins
  • Flower: 5–15 cm long spikelet inflorescences bearing pale yellow florets
  • Stem: Hollow, erect stems with nutrient-storing bulbous basal nodes
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Care Guide

Watering

Keep soil consistently moist during active growth; supplement during dry spells

Fertilization

Light nitrogen feed once monthly. Use balanced, diluted feed to support foliage and bulb development

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water, dilute 1:20 for root drench to boost bulb health
Pruning
  • Trim spent flower spikes after blooming to prevent unwanted self-seeding
  • Cut back dead foliage in late autumn to tidy clumps and reduce overwintering pests
  • Thin overcrowded clumps every 2–3 years to improve airflow and nutrient uptake
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No documented toxicity to cats

Humans: Edible grains when processed; no documented toxic effects for humans

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Garden Uses & Culture

Culture: N/A

Usage: Forage crop, edible grain production, ornamental grass for meadow gardens