this time of year its perfect weather for them and theyl put on a bumper of hot and bells.
yep frost will kill them and make the peppers wilt. i wish i had a warm place to pot and save my big bell plants and transplant them in spring.3 years ago i left mine till the day before it was supposed to frost..we canned bunch and i hung the rest in the barn to dry out and ground themin the blender later,,I still have 6 quarts canned and 3 pints of ground ,,