I had 3 seedlings bloom with short, SDB sized blooms this year. I also had several named irises do the same thing, so I don't know what caused it. I kind of like the colors on this one, but will wait to see what it looks like with a regular sized bloom. Did any of you have this happen this year?
Seems to be trying to have a bit of ruffles. This is a sibling to the one above.
