When trying to grow chiles in these western USA mountains, I find that they just don't have the time to mature and produce much before the frosts start up. Especially since nights here are cool, even when days are hot. So I've tried growing them as perennials. They might not produce much the first year, but after a winter indoors, they really do well the second year potted outside. They tend to look really bad around February, but then they pick back up again in the spring. The best chiles for this treatment are rocotos (C. pubescens). They get big, old, and bushy, have little winter die-back, and start growing again early in the spring. The ajis (C. baccatum) are also good, being both fast growing and resistant to winter die-back. The habaneros (C. chinense) are OK for this, but tend to be stunted, probably by the cool temperatures. Same goes for the wild pepper varieties. Most of the other chiles (C. annuum) aren't too good for this treatment. They tend to die over the winter. Especially the fast-growing plants like cayennes, anchos and the like. The exceptions have been peruvian purple and serrano. Especially the peruvian - it has a compact, slow-growing bushy growth habit. Question - anyone have observations on other chile varieties grown as perennials in the north? I'm especially interested in varieties that resist dying during cold, dark winters.