White Wood Aster (Aster ageratoides)

White Wood Aster

Aster ageratoides

Delicate daisy-like blooms brighten shaded woodland edges. Herbaceous perennial wildflower; common name: White Wood Aster.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Prefers partial shade with 3–5 hours of indirect daily sunlight; avoid intense midday summer sun
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Watering Keep soil consistently moist but not waterlogged; tolerates short periods of dry soil once established
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Temperature Hardy to cold temperate climates; withstands winter temperatures as low as -30°C, prefers summer temperatures below 28°C
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Characteristics

  • Leaf: Ovate to lanceolate leaves with serrated margins; basal leaves larger than stem leaves
  • Flower: Composite daisy-like heads with white ray florets and yellow disk florets
  • Stem: Erect, branching green stems with fine pubescence
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Care Guide

Watering

Water when the top 2 cm of soil feels dry; maintain even moisture during bloom period

Fertilization

Diluted balanced liquid feed every 4 weeks. Discontinue fertilization after early autumn to support winter hardiness

Composted banana peel tea:Soak fully composted banana peels in water for 24 hours; dilute the tea 1:20 with water before applying as a root drench to avoid nutrient burn
Pruning
  • Deadhead spent flower heads to extend the blooming period
  • Cut back all stems to ground level in late winter to promote fresh spring growth
  • Thin overcrowded clumps every 2–3 years in early spring to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No documented toxicity to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Wildflower garden planting, pollinator habitat support, cut flower arrangements