Elms were once a common feature of the English landscape, and were often found in churchyards along with yew trees. Lord Byron wrote a poem, "Lines written beneath an elm in the churchyard of Harrow" (below). In Celtic mythology, elms are closely associated with death and the Underworld.
Around 1967 a virulent strain of Dutch elm disease arrived in Britain, killing off over 25 million trees. There are now very few mature elms left in the country.