If you leave bulbs in ground for winter do you cut leaves from calla lilies?

I live in Arkansas and we have tiger lillies and surprise lillies. we never cut the leaves back for winter. we just let the leaves die a natural death and next spring they come back again I live in Arkansas and we have tiger lillies and surprise lillies. we never cut the leaves back for winter. we just let the leaves die a natural death and next spring they come back again