Urban hedges: a cradle for plant invaders?
Hedges are a habitat type peculiar to urban areas. Some ornamental plants find their ways out of gardens using hedges to adapt to the ecological conditions of natural habitats. In Slovenia, the following garden escapees seem to gradually become invaders thanks to hedges: Lonicera japonica, Spiraea japonica, Acer negundo, and to a lesser extent Duschenia indica, Mahonia aquifolium and Berberis thunbergii.
Sources
Jogan N (2006) Urban hedges: a cradle for plant invaders? In: Neobiota. From Ecology to Conservation. 4th European Conference on Biological Invasions. Vienna (Austria), 2006-09-27/29, BfN-Skripten 184: page 159.