In 1745, the US welcomed mimosa trees for their pink flowers; they later escaped gardens and spread as an invasive species | World News
Around 1745, mimosa arrived in the United States as an ornamental tree, prized for its fragrant pink flowers, delicate foliage and unusual habit of folding its leaves at night. What began as a garden favourite, however, did not stay neatly within gardens. Albizia julibrissin escaped cultivation and gradually established itself along roadsides, clearings, flood plains…