It’s something that most people (probably most likely of the male side of things) don’t know. There is a code and meaning behind the number of roses you give to someone on a bouquet. Here’s some examples:

• One rose: On a first date, it means love at first sight. 
• Three roses: the shared love of a couple. A traditional one month anniversary.
• Nine roses: Means we’ll be together forever.
• Twelve roses: Means “be mine!”
• Fifteen roses: “I’m sorry!”
• Twenty-four: “I’m yours!”

(via thepinkpopcorn)