Catchfly (Silene armeria): Growing Guide for Sticky-Stemmed Wildflowers

Catchfly (Silene armeria)

Catchfly is an easy annual (perennial in zones 5–8) with vivid pink, magenta, red, or white flowers on sticky stems that trap insects (but don't digest them). Native to Europe/Africa, it thrives in poor, rocky soils and self-seeds prolifically. Great for cottage gardens, borders, containers.

Quick Facts

• Common Names: Catchfly, None-So-Pretty, Sweet William Catchfly
• Botanical Name: Silene armeria
• Plant Height: 18–24 in (45–60 cm)
• Bloom Time: Summer to Fall
• Life Cycle: Annual/Perennial

Growing from Seed

• Direct sow: Early spring, 3 weeks before last frost, 1/4 in deep.
• Germination: 15–25 days.
• Self-seeds heavily. Deadhead to control spread.

Care Requirements

Light

Full to partial sun. Afternoon shade in hot climates.

Soil

Average to poor, well-draining. Rocky okay.

Watering

Established plants prefer slightly dry. Avoid wet soil.

Fertilizer

Light: once or twice a season.

Support

Stake or let lean on neighbors.

Pests & Diseases

• Few issues. Fungal diseases in wet soil.