The short answer is that each person buys the flower the other one wears. Whoever wears the corsage receives it from their date, and whoever wears the boutonniere receives that from theirs. It is a swap, not a one-way gift.
That is the tradition. In practice, prom groups look very different than they did when the rule was written, and there are a lot of reasonable ways to handle it. What follows is how it usually plays out, and how to decide for your own group.
The traditional swap
Older etiquette guides describe it in gendered terms. Kremp Florist, a Pennsylvania florist that ships prom flowers nationally, puts it plainly in its FAQ. Traditionally, the guy buys the corsage and his date buys the boutonniere. FTD, the floral network, describes the same custom, with the corsage handed over when one date picks the other up.
The idea underneath is still useful, even if the gender roles are not. Each person picks out something for the other, it shows they thought about the outfit, and the two pieces are meant to match.
Who pays is a separate question
Who buys the flowers and who pays for prom in general are not the same thing. Etiquette writer Julie Blais Comeau says that whoever asks generally pays for things like tickets. She lists flowers alongside clothes and grooming as individual purchases, separate from the costs a couple shares. She also says to talk money with your date and with your parents, since parents often cover much of the bill.
That conversation is worth having early, and our page on who pays for prom walks through it.
Same-sex couples and other pairings
There is no special rule here, which is good news. The swap works for any couple. Each person buys the flower the other will wear. The only question is what each person wants to wear, and that depends on the outfit, not on gender.
Two people in suits often trade boutonnieres. Two people in dresses often trade wrist corsages. A couple in one of each does the classic swap. Some people in suits like a wrist corsage. Some in dresses prefer a small pin. Ask your date what they want, and tell them what you are wearing.
Friends and groups
Going with friends instead of a date is common, and flowers are entirely optional for groups. If you want them, a few approaches work:
- Everyone buys their own. Simple and fair.
- Friends pair off and swap, the same way dates would.
- One person orders matching pieces for the whole group and everyone pays them back. Agree on the price before anyone orders.
A group order takes longer for a florist to fill, so give extra notice. The Society of American Florists recommends ordering at least two weeks ahead even for a single corsage.
Going solo
If you are going on your own, you can buy yourself a corsage or boutonniere, ask a parent to, or skip flowers completely. All three are normal. Comeau puts it simply. Going alone, with a friend, with a group or with a date are all perfectly acceptable. Our guide to going to prom alone covers the rest of the night.
Skipping or swapping the flowers
Traditions shift. Some students now trade the corsage for a small hand-held bouquet, a shift our corsage and boutonniere guide looks at. Elsewhere, people choose silk flowers they can keep, or skip flowers and put the money toward something else. None of that is rude. Just agree on it with your date so nobody shows up empty-handed while the other person brought flowers.
How to bring it up
A quick message saves an awkward moment. Something like this works: "Are we doing flowers? My outfit is navy with silver, and I'd rather have a wrist corsage than a pin. What are you wearing?" Then share a photo of the outfit. SAF suggests the person ordering the corsage find out what their date wants, and even go to the florist together so the pieces match.
For types, flowers, prices and care, see our corsage and boutonniere guide. And if the outfit is still undecided, you can browse prom shops by state.