A large deciduous shrub, now very well established on waste ground, by railways, in quarries, on roadsides and generally in urban habitats, where it often grows on walls and neglected buildings. It prefers dry, disturbed sites where large populations can develop from its wind-dispersed seed. Lowland.
B. davidii was introduced into cultivation in the 1890s, and quickly became very popular in gardens. It was known to be naturalised in the wild in Merioneth by 1922 and Middlesex by 1927, and shown as locally well established in S. England in the 1962 Atlas. In recent decades it has spread rapidly throughout lowland Britain and, to a lesser extent, Ireland.
Native of China.
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.