The Sea Campion is a loose, scrambling plant which produces distinct white flowers with conspicuously veined sepals joined into an inflated tube. The leaves are green, hairless and waxy, and some remain green throughout the winter.
It flowers March to October. Discovered in coastal habitats such as shingle banks, sand dunes and cliffs, and also inland on high mountains. Widespread and locally common, the Sea Campion varies its growth form according to its environment.