Known as Campion or Catchfly, this is a fairly varied genus. Some members are low and mat-forming, while others are tall and upright. They also come in a wide range of flower colours and forms. The common names are also used to refer to the genus Lychnis.
There are some 500 species of annuals, biennials and perennials, which are all native to the northern hemisphere, including some found in Britain. They grow in a variety of habitats from woodlands to shingle beaches.
They grow best in full sun and most varieties are happy in a well-drained soil, which is neutral to alkaline.