Will Jiuchonggen freeze to death in winter?

Yes Because this plant is not cold-tolerant, it is easy to freeze to death as long as the weather is cold, and 7 degrees is the minimum adaptive temperature of roots. The temperature can often be below 7 degrees in winter, so the roots can freeze to death in winter. "Jiuchonggen" is a perennial climbing herb with a spindle-shaped root with a length of 30cm.