Wisterias caught by frost?

we have three wisterias growing on the woodstore, one on each upright. One is about 10 years old, growing partially in the shade of an oak tree, and has not flowered yet. It grows healthy leaves, and well, each year. The other two are coming up to 2 years old, Lidls specials, one white, one pink. Both have flowered at least once.

They were all growing well, with new shoots about 8"-12" long. Then on Sunday I saw that the new growth had shrivelled up, and was crispy, we have had a series of frosts, one giving us temps of -3c next to the house. It could have been colder by the woodstore, hard to say, as the garden is a frost pocket, with different areas chilling more, or less, depending on the wind, and time of year.

Have we lost these wisterias? Will they come back this year?

 

I'm thinking the plants will survive but you are not likely to get much in the way of flower this year.