From Longman Dictionary of Contemporary Englishedgingedg‧ing /ˈedʒɪŋ/ noun [countable, uncountable] EDGEsomething that forms an edge or border a white handkerchief with blue edging
Examples from the Corpus
edging• Hide the brackets by adding an edging of deep wallpaper border - backing it with stiff card for extra durability.• They would be ideal for edging mixed borders or bedding schemes.• By the gate the Patriarch's buxom companion was still at work, weeding a not particularly fertile-looking patch of edging.• The outer edges were rounded and smoothed with a small edging trowel, which gives a very attractive finish.• Don't forget that anything laid in sand always needs a solid edging. 