Well ray jay, I'm not an expert here,but I'm guessing your plants are in the ground and not movable. I would stick a pole next to the plant or around the plant and make a te-pe/tent with plastic or bed sheet, anything to keep your ladies from freezing. I'm sure some will come along here and speak on lite frost issue.lol
There is a heading on frost on the main page third one down. Any way cover plant(s) at sunset(if able). Also some dry dead grass or chips on the grown under the plant before it cools off. To keep the roots warm and hold in the heat.