A rhizomatous perennial herb, much grown in gardens and occasionally occurring as an escape or throw-out in hedge banks, open woodland and on roadsides, usually not far from habitation. Lowland.
This species, introduced into Britain by 1576, is much grown in gardens, and is very persistent once established. It has been known in the wild since 1835, and is probably increasing. There are several cultivars and in some areas the white-flowered `Album` appears to be the most frequently encountered in the wild.
Native of the mountains of S. Europe (Alps, Apennines, Balkan peninsula and Carpathians).
PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.