Answer: It sounds to me like you've got a good average! According to the authors of "The Pepper Garden", (Dave DeWitt & Paul W. Bosland; Ten Speed Press, Berkeley CA), some varieties do well in a given area while others do not. It could be that 'Gypsy', 'Northstar' and 'Peto' just naturally perform well in your climate and soil. The other varieties may take exception to that bit of shade your garden gets. Also, not all peppers are created equal. Some varieties are bred more for uniform yields or disease resistance than flavor. Incidentally, "The Pepper Garden" recommends 'Gypsy' as one of the best bells!
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