Flax Catchfly (Silene linicola)

Flax Catchfly

Silene linicola

Slender stems carry delicate pink blooms, a quiet wildflower charm. Annual herbaceous flowering plant; common name: Flax Catchfly.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Thrives in full sun to partial shade; tolerates mild afternoon shade in hot Mediterranean climates
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Watering Allow the top 2–3 cm of soil to dry completely between waterings to prevent root rot
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Temperature Tolerates mild spring frost; performs best in cool to warm temperate growing conditions
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Characteristics

  • Leaf: Narrow linear gray-green leaves, up to 8 cm long, sparsely covered in fine hairs
  • Flower: Clustered pink to white five-petaled blooms with notched petal tips
  • Stem: Slender, branching stems coated in glandular hairs that produce a subtle sticky secretion
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Care Guide

Watering

Keep soil consistently moist but not waterlogged during active growth

Fertilization

Diluted balanced organic feed once monthly. Avoid over-fertilizing to prevent leggy, weak stem growth

Banana peel tea:Steep 1 chopped banana peel in 1 liter of water for 24 hours; dilute 1:2 before drenching soil; discard solids to avoid pest attraction
Pruning
  • Deadhead spent blooms regularly to encourage extended flowering through late summer
  • Thin crowded stems to improve airflow and reduce the risk of fungal infections
  • Cut back the entire plant to ground level after flowering to tidy garden beds and prepare for next season
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no documented adverse health effects

Humans: No known toxic effects to humans from ingestion or skin contact

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental wildflower for rock gardens, meadow plantings, and pollinator-friendly borders