Frost on the Pumpkin

It was cold and wet last night when I went to bed. The first hard frost of the season was seen this morning.  I stepped out to very icy slippery steps and crunchy white grass.  The snow was gone but replacing it was frost.  My plant I did not take in I covered over with a towel and placed under the picnic table last night.  This morning I took off a very frozen towel and put the plant in the sun.  I will see if my makeshift garage protected the geraniums and petunias.  And it is only September 12th in the South Dakota Black Hills!