Growing Red Campion in a pot

Red campion is a low-maintenance perennial once established, well suited to naturalistic planting schemes and shady borders. Watering needs are moderate: keep soil evenly moist during the growing season, especially in prolonged dry spells in late spring and summer when plants are flowering. In autumn and winter, natural rainfall is usually sufficient, and established plants tolerate short periods of dryness thanks to their deep roots. Feeding is not necessary. Red campion evolved in nutrient-poor woodland soils and performs perfectly well without supplementary fertiliser. In fact, over-feeding can encourage soft, leafy growth at the expense of flowers and make plants more attractive to aphids. If your soil is very poor, a light mulch of leaf mould or garden compost in early spring provides gentle, slow-release nutrients and improves soil structure. Red campion is fully hardy across zones 3a to 8b, so no special winter protection is needed. Plants die back to a basal rosette in autumn and re-emerge reliably in spring. Mulching around the crown in late autumn helps suppress weeds and protects roots in colder winters, but isn't essential. Pests and diseases are rarely a problem. Slugs and snails may nibble young foliage in spring, particularly in damp, shady sites—use organic slug pellets, beer traps, or hand-picking if damage is severe. Aphids occasionally cluster on flower buds in early summer; a strong jet of water usually dislodges them, or tolerate low numbers as they attract beneficial insects. Red campion is generally disease-free, though powdery mildew can appear on leaves in very dry conditions—improve air circulation and water at the base rather than overhead if this occurs.