Ecclestone Square is named after Eccleston in Cheshire, part of the Duke of Westminster-owned estates. Created from a low-lying swamp, it was drained in the early 17th century and designed in 1828 by Thomas Cubitt (1788-1855).The garden has been replanted over three decades to provide year-round interest. The garden boasts many specialist collections, including camellias, climbing and shrub roses, and a National Collection of ceanothus. In 2006, a Wollemi pine – considered extinct until found recently in Australia – was donated to the square. Other unusual tender plants include the giant Mexican dahlia, Dahlia imperialis, and the white sunflower tree, Rojasianthe superba, from Guatemala.