Rose Campion (Silene coronaria)

Rose Campion

Silene coronaria

Soft silver foliage contrasts with vivid magenta blooms, a cottage garden staple. Herbaceous perennial; common name: dusty miller campion.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; thrives in bright, direct sunlight for most of the day; tolerates light shade in hot summer climates
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Watering Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot in poorly drained soil
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Temperature Hardy to -15°C; tolerates moderate summer heat up to 30°C; requires cool winter temperatures for dormancy
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Characteristics

  • Leaf: Silvery-grey, woolly, lanceolate to ovate leaves forming dense basal rosettes
  • Flower: Bright magenta to pink five-petaled blooms in loose terminal clusters
  • Stem: Erect, woolly stems with sparse leaves, branching near the top
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Care Guide

Watering

Keep soil evenly moist during active growth periods

Fertilization

Apply diluted balanced feed once monthly. Avoid over-fertilizing to prevent leggy growth and reduced flowering

Eggshell powder topdressing:Grind dried eggshells to a fine powder; sprinkle lightly on the soil surface and water in to release calcium gradually without causing nutrient buildup
Pruning
  • Deadhead spent blooms regularly to encourage prolonged flowering through mid-summer
  • Cut back stems to basal rosettes after flowering to promote new foliage growth for the following season
  • Remove damaged or yellowing foliage to maintain plant health and improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no adverse effects for cats

Humans: No known toxic effects for humans; safe for handling and ingestion in small amounts

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Garden Uses & Culture

Culture: Symbolizes devotion and remembrance in some European cottage garden folklore

Usage: Ornamental border plant; cut flower for fresh bouquets; drought-tolerant ground cover in sunny sites