<sod>Found throughout Great Britain and [[Ireland]],<ref name="Clapham"/>introduced and naturalized in Ireland.<ref>Hackney,1992. ''Stewart & Corry's Flora of the North-east of Ireland''. Institute of Irish Studies and Queen's University of Belfast. ISBN 0 85389 446 9</ref><eod>
<sod>''Petasites fragrans'' is native to the Mediterranean region of Europe, including Italy, Sicily, Sardinia and north Africa. It was introduced to Great Britain in 1806 where it has become naturalized. It was recorded in the wild by at least 1835 in Middlesex <ref name=BRC>{{cite web |title= Online Atlas of the British Flora. ''Petasites fragrans'' (Winter heliotrope) |url=http://www.brc.ac.uk/plantatlas/index.php?q=node/3633 |publisher=Biological Records Centre |location=Wallingford, Oxfordshire, U.K. }}</ref><ref name="Clapham"/> It is also introduced and naturalized in Ireland.<ref>Hackney,1992. ''Stewart & Corry's Flora of the North-east of Ireland''. Institute of Irish Studies and Queen's University of Belfast. ISBN 0 85389 446 9</ref>. Female plants are unknown in the British Isles.<ref name=Stace>{{cite book|last=Stace|first=C.A.|year=2010|title=New flora of the British Isles|edition=Third|publisher=Cambridge University Press|location = Cambridge, U.K.| isbn=9780521707725}}</ref>{{rp|771}} The male plant is grown as an ornamental in gardens and some churchyards, and was well established by the start of the 20th century.<eod>