Sea Campion is a subspecies of Bladder Campion and is a smaller perennial. The flowers of Sea Campion are often solitary whereas those of Bladder Campion form a loose cluster. The petals differ also- those of Sea Campion are broader. Sea Campion's leaves are narrower; many of them are non-flowering and these form a kind of mat. The swollen calyxes of Sea Campion have broader mouths. Sea Campion is a plant of the seaside and of rocky coasts. It grows all round the coasts of Ireland and is one of the many beautiful plants flourishing near the Glens of Antrim. It is grown in gardens in the double white form 'Flore pleno'.
The flowers appear from June to August. Sea Campion grows round the coast of Britain and round Europe's Atlantic coast.