April to November. The greening construction time on both sides of the South Third Ring Road in Hohhot is 4- 1 1 month, which is suitable for greening construction in Hohhot every year. Hohhot has a higher latitude, a longer frost period and a shorter greening construction period. Hohhot, commonly known as Hohhot, formerly known as Guisui, is the capital of Inner Mongolia Autonomous Region, located in the middle of Inner Mongolia Autonomous Region.