So, looks like I've raised this one to adulthood :)
There was a flower on another seedling of this bunch but I either missed it or it never opened so I'll consider this one as the first. It seems like a miracle! I've grown it from a seed collected from my own plant and now it's flowering!
You can see these Titanopsis calcarea plants as newborns, nearly newborns, 2-month-olds, 3-month-olds, 15-month-olds here in the blog. They hatched in May 2013.