Red campion
Also known as
Red catchfly, Purple campion, Wild campion
Keep this plant’s care guide close at hand.
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Silene dioica, commonly called Red campion, is a hardy, short-lived perennial or biennial wildflower native to much of Europe and parts of western Asia. It forms loose clumps 30–90 cm tall with softly hairy, branching stems and opposite, ovate, mid‑green leaves. From late spring into early autumn, it bears abundant magenta to rosy‑pink flowers with five deeply notched petals and a conspicuous, tubular, hairy calyx. As its species name suggests, it is dioecious—male and female flowers are borne on separate plants—so seed set requires both sexes. The slightly sticky stem nodes can trap small insects, inspiring the “catchfly” name, but the plant is not carnivorous. Red campion thrives in moist, humus‑rich, well‑drained soils, preferring partial shade typical of woodland edges and hedgerows. It attracts bees, hoverflies, butterflies, and moths, supporting a wide range of pollinators. It self‑seeds readily (and may hybridize with White campion, Silene latifolia), making it excellent for naturalistic plantings, cottage gardens, and wildlife meadows with minimal maintenance.
Taxonomy
Properties & Requirements
How to care for Red campion
Water
Keep soil evenly moist, especially during establishment and dry spells. Outdoors, aim for about 2.5 cm (1 inch) of water per week in the growing season, adjusting for rainfall and soil type. Water deeply at the base to encourage robust root systems and avoid prolonged waterlogging around the crown. In containers, water when the top 2–3 cm of mix is dry, allowing excess to drain freely. Mulch with leaf mould or compost to reduce evaporation and maintain a cool, moist root zone.
Light
Best in partial shade or dappled light, mimicking woodland‑edge conditions. Provide 3–6 hours of morning sun with afternoon shade for longest bloom and healthiest foliage. In cool, maritime climates it can tolerate full sun if soil remains consistently moist. Deep shade leads to fewer flowers and leggier growth, while intense, all‑day sun in hot regions can scorch leaves and shorten the flowering period. Space plants to allow air flow in shadier sites.
Nutrients
Red campion is not a heavy feeder and often performs best in moderately fertile soils. Incorporate compost or leaf mould at planting, then top‑dress with a thin mulch each spring to maintain moisture and soil structure. Avoid high‑nitrogen fertilizers, which can produce lush, floppy growth at the expense of flowers. In containers or very poor soils, a balanced, slow‑release fertilizer at low rates in early spring is sufficient; supplement with a dilute liquid feed monthly during peak bloom if foliage pales.
Temperature
Fully hardy in temperate climates (approximately USDA Zones 4–8), Red campion tolerates winter lows near −25 °C (−13 °F). Optimal growth occurs in cool to mild conditions around 10–24 °C (50–75 °F). Prolonged heat above 30 °C (86 °F) can reduce flowering and stress plants; provide afternoon shade and mulch in hot summers. Ensure sharp winter drainage to prevent crown rot in cold, wet soils. Plants overwinter reliably; foliage may die back and re‑flush in spring.
