>>2423527Looked it up for you.
>Clovers are winter hardy to -35 degrees F. They are less tolerant in the heat of the south, where they tend to be grown as a winter annual. “In the south it thrives in winter and spring but sometimes can't take the heat in summertime, so it should be planted into existing turf,” Watkins says.In any case, be sure to use inoculated seed if you want to make use of clover's tendency to form rhizomes. It fixes nothing on its own without the bacteria.