Six-angled Pipewort (Eriocaulon sexangulare)

Six-angled Pipewort

Eriocaulon sexangulare

Its tiny spherical blooms float like pale stars over wetland shallows. Aquatic herbaceous perennial; common name: six-angled pipewort.

Full sun
constant/week
Moderate
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Plant Needs

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Sunlight Bright full to partial sun; tolerates dappled shade in natural wetland habitats
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Watering Requires consistent shallow standing water; avoid complete drying of substrate
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Temperature Thrives in warm tropical to subtropical temperatures; avoid prolonged exposure below 15°C
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Characteristics

  • Leaf: Narrow, linear basal leaves, submerged or floating, bright green
  • Flower: Tiny spherical white or pale green inflorescences on slender, six-angled stems
  • Stem: Slender, rigid, six-angled scapes supporting flower heads
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Care Guide

Watering

Maintain 2–5 cm of standing water; top up with dechlorinated water as needed

Fertilization

Diluted aquatic plant feed every 2 weeks. Use low-nitrogen aquatic plant feed to avoid excessive algae growth

Composted banana peel extract:Steep fully composted banana peels in dechlorinated water for 3 days; dilute 1:20 before adding to water feature to avoid nutrient spikes
Pruning
  • Remove yellowing basal leaves to maintain water clarity and reduce organic waste buildup
  • Trim spent flower scapes to encourage new inflorescence growth
  • Thin overcrowded rosettes in spring to improve light and water circulation
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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: Ornamental water garden plant; wetland restoration species