Christopher Weeks wrote:My impression is that they're all perennial in their native range. They overwinter fine for me if I bring them in when it gets chilly.
I agree, I have 2 jalapeño plants that are now 4 years old. They spend 6 months indoors. In Nov-Dec the last fruits ripen. Then they get kinda scraggly and may lose most of their leaves, but I just prune the branches and when they go back outside in May they bounce right back and grow new leaves.. Small sized “lunchbox” sweet peppers would probably do great treated the same way.