What is Coriander Seed? Coriander is from the Jafari family Coriander seeds are large and light brown in color and have a hollow cavity. The essence of coriander seeds lies in this part and gives a good taste to the food. Where are coriander seeds grown? Coriander seeds are cultivated in Nahavand city of Iran and about 6000 thousand tons of coriander seeds It is cultivated in Nahavand in one year