Arctic Cotton Grass (Eriophorum scheuchzeri)

Arctic Cotton Grass

Eriophorum scheuchzeri

Fluffy white seed heads look like polar snow tufts. Hardy perennial sedge; common name: Arctic Cotton Grass.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates low light in native tundra habitats
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Watering Keep soil consistently moist; tolerate seasonal waterlogging in native boggy habitats
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Temperature Extreme cold hardy; survives subzero winters; prefers cool summer temperatures under 20°C
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Characteristics

  • Leaf: Narrow, linear, bright green basal leaves up to 20 cm long.
  • Flower: Dense, brownish spikelet inflorescences that mature into fluffy white seed heads.
  • Stem: Slender, smooth, upright culms.
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Care Guide

Watering

Maintain constant soil moisture; avoid drying out during active growth

Fertilization

Diluted organic feed once every 2 months. Use low-nitrogen organic feeds to support natural growth habits

Composted sphagnum moss tea:Steep fully composted sphagnum moss in water for 24 hours; dilute 1:10 for root drench to maintain acidic soil conditions and improve moisture retention
Pruning
  • Remove spent seed heads in late summer to encourage tidiness and prevent self-seeding if desired
  • Thin overcrowded clumps in early spring to improve airflow and reduce competition
  • Trim dead foliage in late winter before new growth emerges to maintain a neat appearance
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental for bog gardens; provides wildlife habitat for tundra insects and small birds