Will the 7-degree-just-placed bromegrass freeze to death?

Sparrows and plums that have just been served at 7 degrees will not freeze to death. According to relevant public information, Bromus is cold-tolerant. When the temperature is as low as 10 degrees in winter, measures should be taken to keep warm and keep out the cold in time. The cold tolerance of potted Bromus must be much worse than that of ground planting. Conservatively speaking, it can safely overwinter at MINUS 4-5 degrees Celsius. Every time you water Bromus inermis, just wet the soil. At ordinary times, plants can be watered according to the principle of no sun and no humidity, so that Bromus inermis can spend the winter safely.