new mexico pepper plant

Question

I have a New Mexico pepper plant. It had 1 flower, and of course, produced 1 pepper.

Answer 1

If it was from this year, it may just need some more time to get into full production. If it was from a previous year, your soil may be lacking in phosphorous. This would inhibit the plant's ability to form flowers (and fruit). I would have your soil tested. These articles will be helpful:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm