Mist Flower (Ageratina riparia)

Mist Flower

Ageratina riparia

It spreads soft cloud-like blooms along waterways, a delicate wild beauty. Perennial herbaceous flowering plant; common names: mist flower, spreading mistflower.

Partial sun
2/week
Beginner
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Plant Needs

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Sunlight Partial sun to full shade; tolerates dappled woodland light, avoid intense midday sun that may scorch foliage
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Watering Keep soil consistently moist but not waterlogged; well-suited for riparian or boggy growing conditions
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Temperature Thrives in temperate to warm climates; protect from frost below 10°C to prevent foliage damage
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Characteristics

  • Leaf: Opposite, ovate to lanceolate leaves with serrated margins, medium green and slightly fuzzy texture
  • Flower: Clusters of tiny, fluffy white to pale lavender composite blooms resembling mist
  • Stem: Slender, branching stems with faint pubescence, trailing or upright growth habit
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Care Guide

Watering

Maintain consistent soil moisture; water when top 2 cm of soil feels dry

Fertilization

Diluted balanced feed every 4 weeks. Discontinue fertilization in autumn and winter when growth slows

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench to support flowering and foliage health
Pruning
  • Deadhead spent blooms to extend the flowering period
  • Thin overcrowded stems in early spring to improve airflow and reduce disease risk
  • Trim back trailing stems in late winter to maintain a compact growth habit
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental groundcover for moist areas; attracts pollinators like butterflies and bees