Clammy campion: complete guide

Overview

Clammy campion (Silene viscaria), also called sticky catchfly, is a European plant perfect for flower gardens. The plant is prized for its vibrant red flowers that attract butterflies and bees. With robust growth and simple care, it remains a favorite choice for garden design.

Appearance and bloom

Clammy campion reaches 30 to 60 centimeters in height and forms dense, upright growth. Foliage is linear and dark green. Flowers appear May through July, with bright red, pink, or white five-petaled blooms arranged in whorls. The sticky stems give this plant its common name.

Ideal location

Place clammy campion in full sun to partial shade, with at least 6 hours of direct sunlight. However, the plant performs best in full sun. Ensure good air circulation around the plant to minimize fungal issues. Wind tolerance is good.

Soil

Clammy campion grows in virtually any soil type but thrives in moderately nutrient-rich, well-draining ground. The plant tolerates dry conditions better than waterlogging. Slightly acidic to neutral soil (pH 6 to 7) is ideal, though it also grows in slightly alkaline soil.

Watering

Water regularly in the first growing season until well-established. Mature plants are moderately drought-tolerant and require less frequent watering. Excessive water must be avoided, especially in fall and winter. Ensure well-draining soil to prevent waterlogging issues.

Pruning

Remove spent flowers regularly to encourage continuous blooming. After flowering, the entire plant can be cut back to 15 centimeters above ground. This promotes compact growth and may create a second flowering period in autumn.

Maintenance calendar

Spring: Plant new specimens and give minimal pruning. Summer: Water regularly and remove spent flowers. Autumn: Cut back after flowering. Winter: Minimal work.

Winter hardiness

Clammy campion is fully winter-hardy in the UK and northern Europe. No special winter protection is needed. In extremely wet winters, problems can occur, so good drainage matters. The plant returns each year.

Companion plants

Combine with other garden flowers like sage, lavender, and roses. It contrasts beautifully with white or blue blooms. Larger groups provide best impact in borders.

Closing

Clammy campion offers simple summer blooming and pollinator appeal. Available at garden centers nationwide. A reliable choice for any garden. For complete garden design and planning services, check gardenworld.app for your front garden. Find more plant guides on gardenworld.app.