This short-lived, semi-evergreen perennial herb occurs in the crevices of old walls and in other stony places, often on limestone or bricks with lime mortar. It seeds freely and thrives in full sun. Generally lowland, but reaching 350 m at Alston (Cumberland).
E. alpinus is a popular garden plant, cultivated by 1739, which seeds prolifically and becomes well-naturalised in new sites. It was known from the wild by 1867. There seems to have been a considerable spread since the 1962 Atlas, perhaps in part a result of the greater propensity of botanists to record plants on garden walls.
Native of the mountains of S.W. and S.C. Europe.
Count of 10km squares in Great Britain: 341
Count of 10km squares in Ireland: 55
Count of 10km squares in the Channel Isles: 1
Atlas Change Index: 1.52
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.