While worn frequently in the past, boutonnières are now usually reserved for special occasions for which formal wear is standard, such as at proms, homecomings, funerals, and weddings. (Women who wear jackets on these occasions also often may wear "buttonholes", but more typically a woman would wear a corsage.) Nowadays, a lapel pin is worn more often than flowers on business suits.
Traditionally, a boutonnière was worn pushed through the lapel buttonhole (on the left, the same side as a pocket handkerchief) and the stem is held in place with a loop at the back of the lapel. The flower's calyx, if pronounced such as those of a carnation, should be fully inserted into the buttonhole which would secure it tightly and flat against the lapel. Thus the buttonhole should ideally be at least 1⅛" long for there to be enough room to fit a standard sized flower's calyx. Otherwise, the calyx would not fit into the buttonhole and the flower head would hang freely and move about in the wind.
However, on many recently made coats and jackets, the lapel is made without the loop required, which would normally sit on the reverse of the lapel, beneath the buttonhole. Sometimes, the lapel buttonhole is in the "keyhole" shape, as opposed to the traditional straight cut, or is not even pierced through, in which case the boutonnière may be pinned onto the jacket lapel, although this may be considered unsightly and continued pinning could eventually damage the cloth or silk facing.
The word Boutonniere derives from the french word; "Buttonhole Flower." Similar to a wedding bouquet, in the 16th century, boutonnieres were used to ward off bad luck and evil spirits. With multiple purposes, It was also used to keep bad scents away and believed to protect against diseases.
In the 18th century however, many wore boutonnieres as fashion statements. They were put on the buttonholes of frock coats. In most parts of Europe during this time, it was normal for men to wear fashionable clothes which included not only the boutonniere, but breeches and boots. The French soon began to incorporate this style as well. 
In the 19th Century, they became part of the Romantic Movement, along with adding fresh color to attire. This was one of the many accessories that a man could add to his clothing similar to picking a pair of well polished shoes. Other accessories were chains, cigar cases, and jeweled pins.
In the 20th century, after World War I and II, the act of wearing a flower on the lapel was still alive. Although worn less commonly, they became a way of a person showing honor, elegance, and masculinity. This was due partly to the influence of the cinema.
Today, boutonnieres are still very much a part of a man’s attire, but on special occasions such as weddings, proms, or ceremonies. When worn at prom or weddings, they often match the flowers of the bride or date(corsages). There are many types and styles of boutonniere’s to choose from. The groom, along with the groom’s men and the father of the bride all wear a boutonniere, adding a touch of elegance to the important event. At ceremonies, they are used to show honor and nobility to men or women who completed a noble endeavor, accomplishment, or achievement.
The flower itself is often a carnation, of which the most formal is white. The classic alternative is one in clove red. Other colours and flowers may also be chosen to better coordinate with whatever else is being worn, such as a blue cornflower. A white gardenia is sometimes seen as a superior alternative to carnations given its scent and beauty.
At the University of Oxford in the United Kingdom it is tradition that students wear a carnation boutonnière while attending their formal examinations. This boutonnière is worn on the lapel of the students sub-fusc, the style of formal academic dress at the University, but is not a compulsory part of the dress. The colour of the carnation indicates which examination the student is taking in that run of exams. At their first examination a white carnation is worn, at subsequent intermediate examination(s) a pink carnation is worn, and at their final examination a red carnation is worn.
|Wikimedia Commons has media related to Buttonhole flowers.|
- Boehlke, Will (2007-01-07). "What's in your lapel?". A Suitable Wardrobe. Archived from the original on 2008-10-14. Retrieved 2008-09-24.
- Mahon, Thomas (2005-07-28). "What if you only have £200?. Section 3". English Cut. Archived from the original on 2007-09-22. Retrieved 2007-09-25.
- "The History of the Boutonniere".
- Antongiavanni, Nicholas (2006). The Suit: A Machiavellian Approach to Men's Style. HarperCollins. p. 163. ISBN 978-0-06-089186-2.
- Storey, Nicholas (2008). A History of Men's Fashion: What the Well Dressed Man is Wearing. Pen and Sword Books. pp. 160–163. ISBN 978-1-84468-037-5.
- "Academic dress | University of Oxford". www.ox.ac.uk. Retrieved 2020-07-22.
- Halliday, Renee (31 May 2012). "Moving to Oxford? Download your relocation guides here: Oxford Examination Carnations". Theoxfordfresher.blogspot.com. Retrieved 31 May 2019.
|Look up boutonnière in Wiktionary, the free dictionary.|