Answer: The fact that you are getting blooms and fruits in this heat shows that you are doing a good job! The incredible heat in the low desert during the summer can interfere with fruit production, and pollen isn't viable much over 90 degrees. You'd have somewhat cooler temperatures at 6500 feet, which would assist. My only question is, when did you plant the peppers? Mid-February (with frost protection) to mid-March is the best time to plant peppers and tomatoes in the low desert to get a crop before the heat hits. A good reference book that contains planting calendars for the low desert is called "Desert Gardening for Beginners: How to Grow Vegetables, Flowers and Herbs in an Arid Climate." ISBN 0-9651987-2-3.
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