Fountain Grass (Pennisetum setaceum)

Fountain Grass

Pennisetum setaceum

Its feathery plumes dance in wind like soft golden clouds. Ornamental grass; common name: fountain 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 bright, direct sunlight for most of the day; tolerate light shade in hot climates
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Watering Water deeply when top 5–7 cm of soil is dry; tolerate short periods of drought; avoid waterlogging
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Temperature Hardy to -10°C; avoid prolonged frost in cold regions; prefers warm, dry growing conditions
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Characteristics

  • Leaf: Narrow, arching linear leaves, 30–90 cm long, green to purple-red (cultivars like 'Rubrum')
  • Flower: Dense, cylindrical feathery plumes, 15–30 cm long, pale pink to tan
  • Stem: Erect, slender stems supporting flower plumes
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Care Guide

Watering

Keep soil evenly moist during active growth; allow top layer to dry slightly between waterings

Fertilization

Apply balanced slow-release fertilizer once at start of growth. Avoid over-fertilization to prevent excessive foliage growth at expense of flower plumes

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest issues
Pruning
  • Cut back dead foliage to 5–10 cm above soil in late winter/early spring to encourage new growth
  • Remove spent flower plumes to maintain tidy garden appearance
  • Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported toxic reactions

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

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Garden Uses & Culture

Culture: Symbolizes grace and gentle movement in landscape design

Usage: Ornamental garden grass, border plant, dried cut flower arrangement