A low shrub, locally naturalised in woodland and open heathland on acidic, sandy and peaty soils. Generally lowland, but reaching 365 m at Tosson (S. Northumb.).
G. shallon was introduced into cultivation in Britain in 1826, and has been recorded in the wild since 1914. It was originally planted as cover for game birds, but has locally become a serious pest, especially on lowland heath where it regenerates rapidly after clearance. In the New Forest (S. Hants.) pigs penned in infested areas have proved effective in uprooting it.
Native of western N. America.
Count of 10km squares in Great Britain: 179
Count of 10km squares in Ireland: 14
Count of 10km squares in the Channel Isles: 1
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
Trees and shrubs hardy in the British Isles, edn 8, II. D-M,
, London, (1973)
The biology of Canadian weeds. 102. Gaultheria shallon Pursh,
, Canadian Journal of Plant Science, Volume 73, p.1233-1247, (1993)
Flora of Alaska and neighboring territories,
, Stanford, (1968)
A bleak future for Gaultheria shallon in the New Forest,
, BSBI News, Volume 84, p.47-48, (2000)