I planted my shallots on November 2 last year (a few weeks after the average first frost date), but you would need to
plant earlier being so much farther north. I'm not sure if shallots will be winter hardy for you without protection or consistent snow cover.
My poblanos have have always turned out darker than regular bell
peppers. I don't remember if they had a "normal green" phase first, though. Did you have a cool
growing season? Hot
peppers seem to have more heat when they get more heat. They like hot and drier conditions.