The south Khorasan province is most known for its saffron fields also Natanz town is another one. Saffron is the world’s most expensive spice.specially Iranian people use saffron in Persian cooking . in Iran , after picking the flower gently plucking the red stigmas and dry them. So picking up and drying these expensive and deliciously spice is a big deal. Saffron is a fragrant and useful spice.This festival is celebratd by zoroastrainsin Mazandaran,Yazd,horasan and Farahan.