Valentine's Day, which is celebrated on February 14th, is a major festival in the western hemisphere. People express their love for each other by means of gifts, of which flowers play a prominent role. In fact, it is said that flowers and chocolates are so essential that those gifts would be taken for granted if presented, yet will be noticed if not presentedhttp://www.askmen.com/toys/mrtech_60/81_tech_gadgets.html. It is said that the tradition of gifting flowers was originally Persian and it was introduced to the west in the 18th Centuryhttp://www.theflowerexpert.com/content/giftflowers/flowersandoccassions/valentines-day-flowers.