Avant Garden Collection Sweetbriar & Moss Cologne by Clean, Released in 2018, avant garden collection sweetbriar & moss is a paradox of fresh, delicate accords and deeper, earthier elements. From clean, a perfume house in the united states, this scent opens with top notes of mandarin orange, lychee, and sichuan pepper for an introduction from the far east. The heart features floral notes of rose de mai, saffron flower, jasmine, and olibanum that bloom into play.