Frost Bite on New Plants

Question

I ordered 4 Dutchman Pipe vines from a nursery during the winter and then received them in mid March while there was still snow out and cold nights. The vines were only about 3 inches long, had green foliage, strong root systems and I planted them under the pergola in well prepared compost soil. Of course, after the first hard frost, they browned up and shrivelled away. My question is, will the root system regenerate new growth or are they most likely completely dead? Not sure why the nursery sent them to me so early in the season.

Answer 1

These articles should help: https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm, https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm, https://www.gardeningknowhow.com/ornamental/vines/dutchmans-pipe/growing-dutchmans-pipe-vine.htm