Mini Purple Carnation Silk Boutonnière FlowerMini Purple Carnation Size: About 1. 57"or 4 cm. The quintessential boutonniere, a carnation is never out of place on a suit or overcoat. Truly versatile due to its popularity both on screen and on the lapels of some of the most notable characters in history, every gentleman will benefit from having a carnation boutonniere in his collection. A purple carnation in your lapel buttonhole works great with purple ties and is popular with wedding parties.