The Azadi Stadium Turf Contractor: It will take another 12 weeks to activate the grass. The former Azadi Stadium grass, planted by the Germans and the Dutch, had good infrastructure, drainage and heating, but recently it was infested with microscopic worms. For the first time in Iran, hybrid grass is going to be planted in Azadi Stadium, which is a combination of artificial fibers and natural grass. Now we are planting grass and then we will inject artificial fibers into it. The grass will turn green in a month, but it will take 12 weeks to use it.