English Ivy and other plants help provide a hidden escape route in Ballard, Seattle. Circa May 2008.
Artificial English Ivy (Hedera helix) adorns this bicycle, locked up at the Tate Modern Museum in London, circa November 2007.
South Broad Street, Philadelphia, in August of 2009.
One of the things that sold me on Philadelphia was how beautifully jungle-like small pockets could feel, such as this spot right beside the sidewalk of a major thoroughfare.
The large Princess Tree foliage dominates the middle of this space, and a Tree-of-Heaven plus a lot of English Ivy (aka Hedera helix, also classified as a non-native invasive) are both seen in the upper left of the frame. Mugwort fills out most of the ground space here, with even some of that foxtail grass in the front right foreground.