Sumatran Fleabane (Erigeron sumatrensis)

Sumatran Fleabane

Erigeron sumatrensis

It spreads softly with daisy-like blooms, a quiet wildflower charm. Annual or biennial herb; common name: Sumatran Fleabane.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun is preferred for optimal flowering; tolerates partial shade in hot climates
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Watering Water deeply when the top 2–3 cm of soil dries out; drought-tolerant once established
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Temperature Thrives in warm temperate to tropical conditions; tolerates light, short-duration frost
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Characteristics

  • Leaf: Basal leaves are spatulate with smooth to slightly serrated margins; stem leaves are linear-lanceolate and clasping
  • Flower: Small daisy-like heads with white or pale lavender ray florets and yellow disc florets, clustered at stem apices
  • Stem: Erect, branched upper stems covered in fine, soft pubescence
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Care Guide

Watering

Keep soil moderately moist during active growth to support flowering

Fertilization

Diluted balanced liquid feed once monthly. Minimal fertilization is needed; excess nutrients may reduce flowering

Composted coffee grounds tea:Use fully decomposed coffee grounds diluted 1:20 with water for root drenching; avoid applying raw grounds to prevent soil acidity spikes
Pruning
  • Deadhead spent flower heads to encourage extended blooming through autumn
  • Thin overcrowded stems to improve air circulation and reduce disease risk
  • Cut back entire plant to basal growth after flowering to manage self-seeding if desired
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no known adverse effects from ingestion or contact

Humans: No documented toxicity to humans; considered safe for handling and incidental contact

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental wildflower for naturalized gardens; occasionally used in traditional folk medicine for minor inflammatory symptoms