Alistair Macdonald wrote:
Two or three dozen Autumn Bliss about 5 years old. As usual cut them back to
ground level after harvesting this year. Now they seem to think it's spring.
All plants are now growing to about 2 feet high. Should I (re)prune them to
ground level or let winter take its toll?

If they're Autumn Bliss then they should be prune late winter. I'll
leave them till then and then re-prune.