Acanthus pruning

Hi, looks like the frost has got to the leaves on my acanthus but there looks like some new leafs starting to come through as well am I best to leave the plant until March/April time and then prune the damaged leafs etc, thanks.

 

When I had acanthus at my last house I used to cut the leaves off when they went soggy in winter. Slugs hid under them and came out in spring. New leaves always grew in spring.