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How to Grow Silene

Silene dioica

Perennial

Red campion is a charming native wildflower with pink-red flowers from late spring through summer, thriving in partial shade and ordinary soil. Ideal for woodland edges, hedgerows, and cottage gardens. Plant 30 cm apart in autumn or spring. It is short-lived (3-4 years) but self-seeds freely to maintain a persistent colony. Deadhead to control spread or leave for natural regeneration. Virtually maintenance-free once established.

Yearly Lifecycle

|
Jan
Dormancy
Feb
Dormancy
Mar
Spring Growth
Apr
Flowering
May
Flowering
Jun
Flowering
Jul
Flowering
Aug
Growing
Sept
Growing
Oct
Leaf Fall
Nov
Dormancy
Dec
Dormancy

Care Essentials

No feeding needed. Red campion is a wildflower that thrives in ordinary soil without supplementary nutrition.

Watch For

  • Prolific self-seeding
  • Rust on leaves
  • Aphids on stems

Companions

Foxglove, Bluebells, Ferns, Cow Parsley

Pet Safety

Cats: Non-toxic
Dogs: Non-toxic
Source

Care Requirements

Light

Partial shade to dappled sun

Thrives in partial shade and woodland edges. Tolerates full sun in moist soil but prefers some shelter. Ideal for north-facing hedgerows and under deciduous trees.

Watering

Minimal, tolerates dry shade

Once established, largely self-sufficient in ordinary soil. Tolerates dry conditions under hedges. Only water newly planted specimens during prolonged drought.

Fertilizing

No feeding needed

A wildflower that thrives in ordinary unfertilised soil. Rich conditions encourage excessive leafy growth and reduce flowering.

Pruning

Deadhead or cut back in late summer

Remove spent flowers to prevent excessive self-seeding, or leave to naturalise freely. Cut back tatty foliage in late summer to encourage fresh basal growth.