Answer: I know this is going to sound strange to you since peppers are grown throughout the southwest, but I think your timing was off just a bit. When temperatures hover around 100 degrees, the pollen in pepper and tomato plants is rendered sterile. If nighttime temperatures remain above 75F, they will sometimes fail to flower. So, even if your plants flower, they won't necessarily set fruit. I'd choose early ripening varieties and set them out in the garden in late February. They should ripen in late June, before temperatures get hot, hot, hot. Be sure to plant in full sunshine, amend the soil prior to planting (or grow in containers), and water as often as necessary to keep the soil moist but not soggy wet.
Hope you have better luck with your next pepper crop!
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