That is one of my pictures above. You may recognize it from my avatar. I think that is the best daylily picture I've ever taken.
I love Blueberry Candy. I think it's such a simple and lovely bloom. I bought two single fans in the spring 2018. It bloomed that first year and increased every year since. It has been a true dormant here in my zone 8b yard. It was definitely a bit taller than 22"--more like 25". It was one of my very favorites and did beautifully until recently.
Unfortunately, it is very prone to rust. This past season, 2021, I had to cut it back two or three times because the rust kept returning. Much to my regret, I had to dig it up and get rid of it. I have replaced it with Rainbow Candy, which supposedly is more rust resistant, but I don't think it could possibly be as pretty as its parent.
Here are a few more pictures from 2020. You can see all its buds and how much it had spread in two years.
Last one, from this spring:
