Iranians are mostly Muslims and celebrate the New Year on the first day of their spring.
There festivals known as Noruz or Nowruz and falls on the 21 March according to the Gregorian calendar. The first month is known as Favardin and Noruz falls on this day.
They know when the New Year is upon them as in each town and village a cannon is sounded at the precise moment until it is heard they don't start their celebrations. They prepare for several weeks before hand.
In preparing they have to grow grains of wheat, barley or lentils to use as decorations for their houses. This decoration is a symbol for growth and prosperity and must be kept in the house for thirteen day after which it is thrown into the river.
They clean their houses during the days leading up to the New Year and they either make or buy new clothes for themselves and their family. If they cannot afford to much they try to have at least one piece of new clothing often a pair of shoes