Boutonnieres are garment adornments meant especially for male members of a wedding party. These adornments are generally flowers which are trimmed in order to match those in the bouquet of the bride.
Daffodils are often considered representatives of that which is new. As bright fresh flowers, they mark the arrival of the season of spring. Marriages too are equated with the season of spring as both symbolize the coming fertility.
Flowers add charm to all wedding affairs. They definitely improve the visual appeal by adding a lot of vibrant colors to the venue. And who would be able to ignore that fresh smell that would be always lingering around.