It is native to southeastern Europe, but is grown worldwide as an ornamental plant and it grows wild in some areas as a garden escapee.

Invasive alien vegetation is a severe problem, especially Port Jackson (Acacia saligna) and domestic garden escapees.

A native of the Mediterranean region, Centranthus ruber has been introduced into many other parts of the world as a garden escapee.

It is cultivated as an attractive ornamental plant in many places, and the descendants of garden escapees now grow wild.

It is often cultivated as an ornamental plant, and some wild populations may be descended from garden escapees.

This, and in particular its large-flowered and even stronger-marked cultivar 'variegatum', is the taxon most often met with as a garden escapee.

It is grown as an attractive ornamental plant in gardens and has occasionally been seen growing in the wild as a garden escapee.

It is native to southern Africa, but it can be found on other continents where it is an introduced species, often the descendent of garden escapees.

Yuccas spread rather slowly, and are not likely to become an invasive pest as is the case with many other garden escapees.

It will grow well in neglected or unfavourable urban spaces where few other flowers flourish, and is a common garden escapee.