Is Ophiopogon japonicus afraid of cold?

Ophiopogon japonicus is relatively hardy and can survive in the snow, but it must be a thick Ophiopogon japonicus cluster. If it's a small pot, you can bring it into the house. In addition, although the first frost solar term has arrived, it is uncertain whether there is a first frost. If the weather forecast says the temperature is still relatively high, there will be no frost.