Did you know that peppers are perennial? They'll grow back if they're "overwintered" aka "winterized."
But first, pepper plants can't survive frosts or freezing temperatures. Here's a summary of the overwintering process...
1
Pick off any remaining chillies, cut off the leaves and prune the branches down to its original "Y" stem.
2
Add a couple inches of moistened potting soil to the bottom of a pot. A size around 2-gallons works well.
3
After removing plants from their current pots, spray the roots with a hose to get rid of the dirt.
4
Mix a Neem oil solution, and then spray plants and roots down to kill existing pests.
5
Hold your plant about an inch from the top of the pot, then fill in the container with moistened potting soil.
6
Put your plants near a window or use a grow light for about 8 hours a day.