A short-lived, semi-evergreen perennial herb grown in gardens and naturalised on lake shores, in marshy meadows, and in other damp, grassy places. It reproduces by seed and some populations are very large. Lowland.
S. californicum was introduced into cultivation in Britain in 1796 and is widely grown in gardens. It was recorded from the wild in 1896 (Wexford) and appears to be increasing.
Native of western N. America.
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.
Atlas text references