Demeter Lilac Cologne Spray By DemeterDemeter Lilac Perfume by Demeter, Demeter lilac is a 2009 fragrance released as part of the brands spring is in the air collection. This single note scent is designed to evoke the intoxicating aroma of these gorgeous purple blooms that signify the full swing of spring. Fans of this scent say it smells exactly like a lilac bush, so you can have that new beginnings feeling all year long.