The red rose is the most popular flower on Valentine’s Day because red roses symbolise love, romance, beauty, and perfection. The number twelve is often used to represent a complete cycle, such as the 12 months in the year, the 12 hours on the clock or the 12 signs of the zodiac. In fact, cultures around the world from ancient to modern times have developed calendars based on cycles of twelve. The number appears throughout mythological and religious traditions as well. The recurrence of the number twelve across the natural and spiritual world has given it a sacred and mystical quality which is universal. These aspects all play into the significance of one dozen roses.