A biennial, occasionally annual, herb of waste ground, rough grassland, field-borders and waysides; also in old quarries and gravel-pits. Occurrences are generally casual, but some populations appear to be persistent. Lowland.
V. blattaria was being cultivated in Britain by 1596 and has been known from the wild since at least 1629. It was described as `scattered irregularly - over the central and southern counties of England` by Dunn (1905) and this still summarises its overall distribution.
V. blattaria has a Eurosiberian Southern-temperate distribution; it is naturalised in Europe north of its native range.
Atlas Change Index: -0.39
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
1978. The biology of Canadian weeds. 28. Verbascum thapsus L. and V. blattaria L. Canadian Journal of Plant Science. 58:401-413.
1978. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.