That is a Thai Hot Ornamental. It is edible. it's also very hot with a Scoville rating of 50,000-100,000. A Jalapeno, for example, runs in the 1,000-5,000 range.
How do I know this? No, I'm not an expert gardener! I mistakenly bought one this year. I am currently drying the peppers to grind for red pepper flakes.
https://bonnieplants.com/product/thai-h ... al-pepper/