Frost and ice form when the temperature falls ... covering large parts of the land for a long period of time. These are called ice sheets. The two biggest ice sheets on Earth cover most of ...
such as frost fabric or row covers. You can also use old blankets, towels, and sheets if you have nothing else on hand, but heavy items should be used on sturdy plants along with stakes to protect ...
They had to protect the tender plants from cold weather with a simple row cover, bed sheet or other method. Where did you notice your first frost? Was it isolated in the low lying areas of your field?