How do warm season grasses behave in temperatures much below 50 degrees?

Warm season grasses are adapted to thrive in higher temperatures, typically between 80 and 95 degrees Fahrenheit. When temperatures drop significantly below 50 degrees Fahrenheit, these grasses respond by entering a dormant state. Dormancy is a natural survival mechanism that helps the grass conserve resources and protect itself from cold stress. In this state, the grass does not grow actively and typically turns brown, signaling that it is not dead but merely in a phase of rest until warmer temperatures return. This reaction is crucial for the survival of warm season grasses in environments where temperatures can fluctuate.

In contrast, other options like dying out or thriving do not accurately reflect the typical behavior of warm season grasses in cooler temperatures. They do not die outright as they are capable of resuming growth when conditions improve, and they certainly do not thrive in low temperatures, as that is outside their preferred growing range.