I dug up my dahlia tubers and put them in a paper bag on my porch for the winter. will they be ok to plant?

the temperature where i live got down in the single digits this winter. will my dahlia tubers be ok by me leaving them on my porch in a paper bag?

I dug up my dahlia tubers and put them in a paper bag on my porch for the winter. will they be ok to plant?
Most tender bulbs are called summer bulbs, but there are several varieties that bloom in the fall. Tender bulbs are cold-sensitive and may not be able to survive the winter in areas of the U.S. other than the Southern coastal regions, the Southwest or coastal areas of California. Unless you live in these climates, you will need to plant tender bulbs in the spring after the ground has warmed up and dig them up in late fall for winter storage. Some tender bulb varieties are elephant's ear, caladium, gladiolus, canna and dahlia.
Reply:Absolutely not . . . toss them and start over . . . in some of the more northerly USDA regions, dahlia tubers won't even survive the winter planted DEEPLY in the soil. You should be able to tell that they have perished . . . they won't be heavy and have that fresh "heft" like they do when bought new. Once these tender tubers have frozen, they will not bloom again. Next time, place them in a bag in your basement, or in a more protected area that doesn't get so far below freezing (32 degrees F.)
Reply:SHOULD BE OK BUT WHY LIFT THEM? LEAVE THEM IN